Finding the Fourth Proportional to 478,423.20, 717,635.82 and 449,193.96
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Solution
The fourth proportional to 478,423.20, 717,635.82 and 449,193.96 is: 673,791.90
Step by Step Solution
- Step 1: Write the proportion equation
478,423.20 : 717,635.82 = 449,193.96 : x - Step 2: Convert to fraction form
478,423.20/717,635.82 = 449,193.96/x - Step 3: Cross multiply
478,423.20x = 717,635.82 × 449,193.96 - Step 4: Simplify right side
478,423.20x = 322,357,675,823.65 - Step 5: Solve for x
x = 322,357,675,823.65/478,423.20 - Step 6: Final answer
x = 673,791.90
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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.