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Finding the Fourth Proportional to 486,951.80, 729,930.90 and 329,196.20

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Solution

The fourth proportional to 486,951.80, 729,930.90 and 329,196.20 is: 493,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,951.80 : 729,930.90 = 329,196.20 : x
  2. Step 2: Convert to fraction form
    486,951.80/729,930.90 = 329,196.20/x
  3. Step 3: Cross multiply
    486,951.80x = 729,930.90 × 329,196.20
  4. Step 4: Simplify right side
    486,951.80x = 240,290,478,542.58
  5. Step 5: Solve for x
    x = 240,290,478,542.58/486,951.80
  6. Step 6: Final answer
    x = 493,458.45

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