Finding the Fourth Proportional to 920,729.62, 1,378,736.28 and 768,548.31
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Solution
The fourth proportional to 920,729.62, 1,378,736.28 and 768,548.31 is: 1,150,854.09
Step by Step Solution
- Step 1: Write the proportion equation
920,729.62 : 1,378,736.28 = 768,548.31 : x - Step 2: Convert to fraction form
920,729.62/1,378,736.28 = 768,548.31/x - Step 3: Cross multiply
920,729.62x = 1,378,736.28 × 768,548.31 - Step 4: Simplify right side
920,729.62x = 1,059,625,440,514.82 - Step 5: Solve for x
x = 1,059,625,440,514.82/920,729.62 - Step 6: Final answer
x = 1,150,854.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.