Finding the Fourth Proportional to 711,531.04, 981,966.08 and 405,614.68
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Solution
The fourth proportional to 711,531.04, 981,966.08 and 405,614.68 is: 559,778.61
Step by Step Solution
- Step 1: Write the proportion equation
711,531.04 : 981,966.08 = 405,614.68 : x - Step 2: Convert to fraction form
711,531.04/981,966.08 = 405,614.68/x - Step 3: Cross multiply
711,531.04x = 981,966.08 × 405,614.68 - Step 4: Simplify right side
711,531.04x = 398,299,857,310.05 - Step 5: Solve for x
x = 398,299,857,310.05/711,531.04 - Step 6: Final answer
x = 559,778.61
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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.