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Finding the Fourth Proportional to 498,137.55, 747,425.02 and 261,424.87

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Solution

The fourth proportional to 498,137.55, 747,425.02 and 261,424.87 is: 392,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,137.55 : 747,425.02 = 261,424.87 : x
  2. Step 2: Convert to fraction form
    498,137.55/747,425.02 = 261,424.87/x
  3. Step 3: Cross multiply
    498,137.55x = 747,425.02 × 261,424.87
  4. Step 4: Simplify right side
    498,137.55x = 195,395,486,656.29
  5. Step 5: Solve for x
    x = 195,395,486,656.29/498,137.55
  6. Step 6: Final answer
    x = 392,252.08

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1.5x scale

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.