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Finding the Fourth Proportional to 512,550.32, 707,132.04 and 321,494

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Solution

The fourth proportional to 512,550.32, 707,132.04 and 321,494 is: 443,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,550.32 : 707,132.04 = 321,494 : x
  2. Step 2: Convert to fraction form
    512,550.32/707,132.04 = 321,494/x
  3. Step 3: Cross multiply
    512,550.32x = 707,132.04 × 321,494
  4. Step 4: Simplify right side
    512,550.32x = 227,338,708,067.76
  5. Step 5: Solve for x
    x = 227,338,708,067.76/512,550.32
  6. Step 6: Final answer
    x = 443,544.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.