Finding the Fourth Proportional to 665,654.10, 998,481.15 and 413,711.70
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Solution
The fourth proportional to 665,654.10, 998,481.15 and 413,711.70 is: 620,567.55
Step by Step Solution
- Step 1: Write the proportion equation
665,654.10 : 998,481.15 = 413,711.70 : x - Step 2: Convert to fraction form
665,654.10/998,481.15 = 413,711.70/x - Step 3: Cross multiply
665,654.10x = 998,481.15 × 413,711.70 - Step 4: Simplify right side
665,654.10x = 413,083,333,984.46 - Step 5: Solve for x
x = 413,083,333,984.46/665,654.10 - Step 6: Final answer
x = 620,567.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.