Home / 426,059.24-639,049.98-392,648.36

Finding the Fourth Proportional to 426,059.24, 639,049.98 and 392,648.36

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Solution

The fourth proportional to 426,059.24, 639,049.98 and 392,648.36 is: 588,936.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,059.24 : 639,049.98 = 392,648.36 : x
  2. Step 2: Convert to fraction form
    426,059.24/639,049.98 = 392,648.36/x
  3. Step 3: Cross multiply
    426,059.24x = 639,049.98 × 392,648.36
  4. Step 4: Simplify right side
    426,059.24x = 250,921,926,605.03
  5. Step 5: Solve for x
    x = 250,921,926,605.03/426,059.24
  6. Step 6: Final answer
    x = 588,936.71

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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.