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Finding the Fourth Proportional to 521,587.20, 782,380.80 and 284,800.71

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Solution

The fourth proportional to 521,587.20, 782,380.80 and 284,800.71 is: 427,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,587.20 : 782,380.80 = 284,800.71 : x
  2. Step 2: Convert to fraction form
    521,587.20/782,380.80 = 284,800.71/x
  3. Step 3: Cross multiply
    521,587.20x = 782,380.80 × 284,800.71
  4. Step 4: Simplify right side
    521,587.20x = 222,822,607,330.37
  5. Step 5: Solve for x
    x = 222,822,607,330.37/521,587.20
  6. Step 6: Final answer
    x = 427,201.07

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Similar ratio
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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.