Finding the Fourth Proportional to 661,382.26, 912,901.75 and 431,974.62
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Solution
The fourth proportional to 661,382.26, 912,901.75 and 431,974.62 is: 596,251.84
Step by Step Solution
- Step 1: Write the proportion equation
661,382.26 : 912,901.75 = 431,974.62 : x - Step 2: Convert to fraction form
661,382.26/912,901.75 = 431,974.62/x - Step 3: Cross multiply
661,382.26x = 912,901.75 × 431,974.62 - Step 4: Simplify right side
661,382.26x = 394,350,385,473.65 - Step 5: Solve for x
x = 394,350,385,473.65/661,382.26 - Step 6: Final answer
x = 596,251.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.