Home / 521,200.20-781,362.90-271,882.20

Finding the Fourth Proportional to 521,200.20, 781,362.90 and 271,882.20

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Solution

The fourth proportional to 521,200.20, 781,362.90 and 271,882.20 is: 407,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,200.20 : 781,362.90 = 271,882.20 : x
  2. Step 2: Convert to fraction form
    521,200.20/781,362.90 = 271,882.20/x
  3. Step 3: Cross multiply
    521,200.20x = 781,362.90 × 271,882.20
  4. Step 4: Simplify right side
    521,200.20x = 212,438,664,250.38
  5. Step 5: Solve for x
    x = 212,438,664,250.38/521,200.20
  6. Step 6: Final answer
    x = 407,595.13

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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.