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Finding the Fourth Proportional to 542,115.59, 748,110.74 and 300,397.41

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Solution

The fourth proportional to 542,115.59, 748,110.74 and 300,397.41 is: 414,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,115.59 : 748,110.74 = 300,397.41 : x
  2. Step 2: Convert to fraction form
    542,115.59/748,110.74 = 300,397.41/x
  3. Step 3: Cross multiply
    542,115.59x = 748,110.74 × 300,397.41
  4. Step 4: Simplify right side
    542,115.59x = 224,730,527,187.20
  5. Step 5: Solve for x
    x = 224,730,527,187.20/542,115.59
  6. Step 6: Final answer
    x = 414,543.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.