Finding the Fourth Proportional to 478,423.13, 717,385.52 and 225,635.74
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Solution
The fourth proportional to 478,423.13, 717,385.52 and 225,635.74 is: 338,336.09
Step by Step Solution
- Step 1: Write the proportion equation
478,423.13 : 717,385.52 = 225,635.74 : x - Step 2: Convert to fraction form
478,423.13/717,385.52 = 225,635.74/x - Step 3: Cross multiply
478,423.13x = 717,385.52 × 225,635.74 - Step 4: Simplify right side
478,423.13x = 161,867,810,980.10 - Step 5: Solve for x
x = 161,867,810,980.10/478,423.13 - Step 6: Final answer
x = 338,336.09
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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.