Home / 381,728.20-572,592.30-240,010.60

Finding the Fourth Proportional to 381,728.20, 572,592.30 and 240,010.60

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Solution

The fourth proportional to 381,728.20, 572,592.30 and 240,010.60 is: 360,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,728.20 : 572,592.30 = 240,010.60 : x
  2. Step 2: Convert to fraction form
    381,728.20/572,592.30 = 240,010.60/x
  3. Step 3: Cross multiply
    381,728.20x = 572,592.30 × 240,010.60
  4. Step 4: Simplify right side
    381,728.20x = 137,428,221,478.38
  5. Step 5: Solve for x
    x = 137,428,221,478.38/381,728.20
  6. Step 6: Final answer
    x = 360,015.90

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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.