 | 1801 - 446 стор.
...geometrical proportion ; for •£-= '•£ — 2, but \- = 8. Four numbers are directly proportional, when the ratio of the first to the second is the same as that of the third to die fourth. As 2 : 4 : : 3 : 6. Four numbers are said to be recipri*ally or inversely... | |
 | Charles Hutton - 1811 - 406 стор.
...the same ratio. 19. Four quantities are said to be Proportional, when the ratio of the first to die second, is the same as the ratio of the third to the fourth. As of the four, A (2), B (4), c (5), D (10), where f- = " = 2, both the same ratio. Nate. Note. To... | |
 | Charles Hutton - 1812 - 620 стор.
...(4), c (8), where .J ;= | = 2, both the same ratio. 79. Four quantities are said to be Proportional, when the ratio of the first to the second, is the same as the ratio cf the third to the fourth. As of the four, A (2), B (4), c (5), D (10), where .* = '.j°— S. both... | |
 | Samuel Webber - 1812 - 260 стор.
...discontinued geometrical proportion ; for £=y=2, but *^=8. Four numbers are directly proportional, when the ratio of the first to the second is the same, as that of the third to the fourth. As 2 : 4 : : 3 : 6. Four numbers are said to be reciprocally, or inversely... | |
 | Charles Hutton - 1816 - 610 стор.
...(4), c (8), where £ = { = 2, both the same tatio. 79. Four quantities arc said to be Proportional, when the ratio of the first to the second, is the same as the ratio of the third to the fourth. As of the four, A (2), B (4), c (5), D < 10), where $ c= if = 3, both the same ratio. Mate. JVbte.... | |
 | Charles Hutton - 1822 - 616 стор.
...B (4), c (8), where f =f =5, both the same ratio. 79. Four quantities are said to be Proportional, when the ratio of the first to the second, is the same as the ratio of the third to the fourth. As of the four, A (2), B (4), c (5), p (10), where 5=»/r=i, both the same ratio. .\<>if. To denote... | |
 | Beriah Stevens - 1822 - 436 стор.
...division of the wntecedent 1, by the consequent 2, viz. i. Four numbers are siiid to be proportional when the ratio of the first to the second is the same as that of the tliii'd to the fourth ; and the proportional numbers are usually distinguished from one... | |
 | John Imison - 1822 - 488 стор.
...consequent by the antecedent. 54. Three magnitudes or quantities, A,B,C, are said to be proportional, when the ratio of the first to the second is the same as that of the second to the third. Thus, 2, 4, 8, are proportional, because 4> is contained in 8 as many... | |
 | John Penrose (teacher of arithmetic.) - 1824 - 320 стор.
...of 9 to 12. Proportion consists of three terms at least. Three numbers are said to be proportional, when the ratio of the first to the second, is the same as- the ratio of the second to the fourth; as 2, 4,8, where -}=£=2, both the same ratio, for 4 is as much greater in... | |
 | Charles Hutton - 1825 - 608 стор.
...both the same ratio. 7'j. Four quantities are said to be Proportional, when the ratio of the tirst to the second, is the same as the ratio of the third to the fourth. As of the four, A (2),u(4),c (5),D (10), where tF=-fa-—%, both the same ratio. Aofp, .Vote. To denote... | |
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Four quantities are said to be proportional when thejatio of the first to the second is the same as the ratio of the third to the fourth. 
