Home / 399,226.20-598,839.30-392,665.20

Finding the Fourth Proportional to 399,226.20, 598,839.30 and 392,665.20

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Solution

The fourth proportional to 399,226.20, 598,839.30 and 392,665.20 is: 588,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,226.20 : 598,839.30 = 392,665.20 : x
  2. Step 2: Convert to fraction form
    399,226.20/598,839.30 = 392,665.20/x
  3. Step 3: Cross multiply
    399,226.20x = 598,839.30 × 392,665.20
  4. Step 4: Simplify right side
    399,226.20x = 235,143,353,502.36
  5. Step 5: Solve for x
    x = 235,143,353,502.36/399,226.20
  6. Step 6: Final answer
    x = 588,997.80

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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.