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Finding the Fourth Proportional to 658,432.28, 987,727.55 and 231,879.94

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Solution

The fourth proportional to 658,432.28, 987,727.55 and 231,879.94 is: 347,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,432.28 : 987,727.55 = 231,879.94 : x
  2. Step 2: Convert to fraction form
    658,432.28/987,727.55 = 231,879.94/x
  3. Step 3: Cross multiply
    658,432.28x = 987,727.55 × 231,879.94
  4. Step 4: Simplify right side
    658,432.28x = 229,034,201,401.63
  5. Step 5: Solve for x
    x = 229,034,201,401.63/658,432.28
  6. Step 6: Final answer
    x = 347,847.77

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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.