Finding the Fourth Proportional to 690,654.05, 953,146.40 and 418,747.98
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Solution
The fourth proportional to 690,654.05, 953,146.40 and 418,747.98 is: 577,898.78
Step by Step Solution
- Step 1: Write the proportion equation
690,654.05 : 953,146.40 = 418,747.98 : x - Step 2: Convert to fraction form
690,654.05/953,146.40 = 418,747.98/x - Step 3: Cross multiply
690,654.05x = 953,146.40 × 418,747.98 - Step 4: Simplify right side
690,654.05x = 399,128,127,550.53 - Step 5: Solve for x
x = 399,128,127,550.53/690,654.05 - Step 6: Final answer
x = 577,898.78
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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.