Home / 521,006.20-781,399.95-146,941.72

Finding the Fourth Proportional to 521,006.20, 781,399.95 and 146,941.72

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Solution

The fourth proportional to 521,006.20, 781,399.95 and 146,941.72 is: 220,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,006.20 : 781,399.95 = 146,941.72 : x
  2. Step 2: Convert to fraction form
    521,006.20/781,399.95 = 146,941.72/x
  3. Step 3: Cross multiply
    521,006.20x = 781,399.95 × 146,941.72
  4. Step 4: Simplify right side
    521,006.20x = 114,820,250,156.38
  5. Step 5: Solve for x
    x = 114,820,250,156.38/521,006.20
  6. Step 6: Final answer
    x = 220,381.74

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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.