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Finding the Fourth Proportional to 625,029.95, 934,874.95 and 521,819.95

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Solution

The fourth proportional to 625,029.95, 934,874.95 and 521,819.95 is: 780,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,029.95 : 934,874.95 = 521,819.95 : x
  2. Step 2: Convert to fraction form
    625,029.95/934,874.95 = 521,819.95/x
  3. Step 3: Cross multiply
    625,029.95x = 934,874.95 × 521,819.95
  4. Step 4: Simplify right side
    625,029.95x = 487,836,399,665.25
  5. Step 5: Solve for x
    x = 487,836,399,665.25/625,029.95
  6. Step 6: Final answer
    x = 780,500.84

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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.