Home / 683,489.27-1,025,230.19-278,679.90

Finding the Fourth Proportional to 683,489.27, 1,025,230.19 and 278,679.90

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Solution

The fourth proportional to 683,489.27, 1,025,230.19 and 278,679.90 is: 418,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,489.27 : 1,025,230.19 = 278,679.90 : x
  2. Step 2: Convert to fraction form
    683,489.27/1,025,230.19 = 278,679.90/x
  3. Step 3: Cross multiply
    683,489.27x = 1,025,230.19 × 278,679.90
  4. Step 4: Simplify right side
    683,489.27x = 285,711,046,778.64
  5. Step 5: Solve for x
    x = 285,711,046,778.64/683,489.27
  6. Step 6: Final answer
    x = 418,018.33

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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.