Finding the Fourth Proportional to 990,109.87, 1,366,354.25 and 537,400.87
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Solution
The fourth proportional to 990,109.87, 1,366,354.25 and 537,400.87 is: 741,614.63
Step by Step Solution
- Step 1: Write the proportion equation
990,109.87 : 1,366,354.25 = 537,400.87 : x - Step 2: Convert to fraction form
990,109.87/1,366,354.25 = 537,400.87/x - Step 3: Cross multiply
990,109.87x = 1,366,354.25 × 537,400.87 - Step 4: Simplify right side
990,109.87x = 734,279,962,678.20 - Step 5: Solve for x
x = 734,279,962,678.20/990,109.87 - Step 6: Final answer
x = 741,614.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.