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Finding the Fourth Proportional to 512,508.87, 768,766.04 and 336,132.79

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Solution

The fourth proportional to 512,508.87, 768,766.04 and 336,132.79 is: 504,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,508.87 : 768,766.04 = 336,132.79 : x
  2. Step 2: Convert to fraction form
    512,508.87/768,766.04 = 336,132.79/x
  3. Step 3: Cross multiply
    512,508.87x = 768,766.04 × 336,132.79
  4. Step 4: Simplify right side
    512,508.87x = 258,407,471,540.37
  5. Step 5: Solve for x
    x = 258,407,471,540.37/512,508.87
  6. Step 6: Final answer
    x = 504,200.97

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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.