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Finding the Fourth Proportional to 521,587.76, 782,381.63 and 284,801.27

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Solution

The fourth proportional to 521,587.76, 782,381.63 and 284,801.27 is: 427,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,587.76 : 782,381.63 = 284,801.27 : x
  2. Step 2: Convert to fraction form
    521,587.76/782,381.63 = 284,801.27/x
  3. Step 3: Cross multiply
    521,587.76x = 782,381.63 × 284,801.27
  4. Step 4: Simplify right side
    521,587.76x = 222,823,278,648.77
  5. Step 5: Solve for x
    x = 222,823,278,648.77/521,587.76
  6. Step 6: Final answer
    x = 427,201.90

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Similar ratio
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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.