Home / 980,023.28-1,469,723.72-315,019.76

Finding the Fourth Proportional to 980,023.28, 1,469,723.72 and 315,019.76

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Solution

The fourth proportional to 980,023.28, 1,469,723.72 and 315,019.76 is: 472,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,023.28 : 1,469,723.72 = 315,019.76 : x
  2. Step 2: Convert to fraction form
    980,023.28/1,469,723.72 = 315,019.76/x
  3. Step 3: Cross multiply
    980,023.28x = 1,469,723.72 × 315,019.76
  4. Step 4: Simplify right side
    980,023.28x = 462,992,013,540.71
  5. Step 5: Solve for x
    x = 462,992,013,540.71/980,023.28
  6. Step 6: Final answer
    x = 472,429.61

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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.