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Finding the Fourth Proportional to 541,615.28, 747,471.20 and 299,920.32

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Solution

The fourth proportional to 541,615.28, 747,471.20 and 299,920.32 is: 413,913.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,615.28 : 747,471.20 = 299,920.32 : x
  2. Step 2: Convert to fraction form
    541,615.28/747,471.20 = 299,920.32/x
  3. Step 3: Cross multiply
    541,615.28x = 747,471.20 × 299,920.32
  4. Step 4: Simplify right side
    541,615.28x = 224,181,801,494.78
  5. Step 5: Solve for x
    x = 224,181,801,494.78/541,615.28
  6. Step 6: Final answer
    x = 413,913.36

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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.