Home / 426,057.24-639,046.98-392,646.36

Finding the Fourth Proportional to 426,057.24, 639,046.98 and 392,646.36

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Solution

The fourth proportional to 426,057.24, 639,046.98 and 392,646.36 is: 588,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,057.24 : 639,046.98 = 392,646.36 : x
  2. Step 2: Convert to fraction form
    426,057.24/639,046.98 = 392,646.36/x
  3. Step 3: Cross multiply
    426,057.24x = 639,046.98 × 392,646.36
  4. Step 4: Simplify right side
    426,057.24x = 250,919,470,565.99
  5. Step 5: Solve for x
    x = 250,919,470,565.99/426,057.24
  6. Step 6: Final answer
    x = 588,933.71

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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.