Finding the Fourth Proportional to 409,720.13, 614,652.87 and 125,404.38
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Solution
The fourth proportional to 409,720.13, 614,652.87 and 125,404.38 is: 188,128.82
Step by Step Solution
- Step 1: Write the proportion equation
409,720.13 : 614,652.87 = 125,404.38 : x - Step 2: Convert to fraction form
409,720.13/614,652.87 = 125,404.38/x - Step 3: Cross multiply
409,720.13x = 614,652.87 × 125,404.38 - Step 4: Simplify right side
409,720.13x = 77,080,162,077.57 - Step 5: Solve for x
x = 77,080,162,077.57/409,720.13 - Step 6: Final answer
x = 188,128.82
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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.