Finding the Fourth Proportional to 391,508.12, 587,349.66 and 125,284.62
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Solution
The fourth proportional to 391,508.12, 587,349.66 and 125,284.62 is: 187,954.92
Step by Step Solution
- Step 1: Write the proportion equation
391,508.12 : 587,349.66 = 125,284.62 : x - Step 2: Convert to fraction form
391,508.12/587,349.66 = 125,284.62/x - Step 3: Cross multiply
391,508.12x = 587,349.66 × 125,284.62 - Step 4: Simplify right side
391,508.12x = 73,585,878,960.23 - Step 5: Solve for x
x = 73,585,878,960.23/391,508.12 - Step 6: Final answer
x = 187,954.92
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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.