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Finding the Fourth Proportional to 541,869.64, 747,747.20 and 300,138.12

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Solution

The fourth proportional to 541,869.64, 747,747.20 and 300,138.12 is: 414,172.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,869.64 : 747,747.20 = 300,138.12 : x
  2. Step 2: Convert to fraction form
    541,869.64/747,747.20 = 300,138.12/x
  3. Step 3: Cross multiply
    541,869.64x = 747,747.20 × 300,138.12
  4. Step 4: Simplify right side
    541,869.64x = 224,427,438,843.26
  5. Step 5: Solve for x
    x = 224,427,438,843.26/541,869.64
  6. Step 6: Final answer
    x = 414,172.38

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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.