Finding the Fourth Proportional to 667,691.44, 921,384.12 and 365,878.96
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Solution
The fourth proportional to 667,691.44, 921,384.12 and 365,878.96 is: 504,896.49
Step by Step Solution
- Step 1: Write the proportion equation
667,691.44 : 921,384.12 = 365,878.96 : x - Step 2: Convert to fraction form
667,691.44/921,384.12 = 365,878.96/x - Step 3: Cross multiply
667,691.44x = 921,384.12 × 365,878.96 - Step 4: Simplify right side
667,691.44x = 337,115,063,586.12 - Step 5: Solve for x
x = 337,115,063,586.12/667,691.44 - Step 6: Final answer
x = 504,896.49
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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.