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Finding the Fourth Proportional to 521,591.20, 782,095.20 and 240,760.96

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Solution

The fourth proportional to 521,591.20, 782,095.20 and 240,760.96 is: 361,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,591.20 : 782,095.20 = 240,760.96 : x
  2. Step 2: Convert to fraction form
    521,591.20/782,095.20 = 240,760.96/x
  3. Step 3: Cross multiply
    521,591.20x = 782,095.20 × 240,760.96
  4. Step 4: Simplify right side
    521,591.20x = 188,297,991,163.39
  5. Step 5: Solve for x
    x = 188,297,991,163.39/521,591.20
  6. Step 6: Final answer
    x = 361,006.84

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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.