Finding the Fourth Proportional to 478,423.66, 717,636.50 and 449,194.41
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Solution
The fourth proportional to 478,423.66, 717,636.50 and 449,194.41 is: 673,792.56
Step by Step Solution
- Step 1: Write the proportion equation
478,423.66 : 717,636.50 = 449,194.41 : x - Step 2: Convert to fraction form
478,423.66/717,636.50 = 449,194.41/x - Step 3: Cross multiply
478,423.66x = 717,636.50 × 449,194.41 - Step 4: Simplify right side
478,423.66x = 322,358,304,211.97 - Step 5: Solve for x
x = 322,358,304,211.97/478,423.66 - Step 6: Final answer
x = 673,792.56
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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.