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Finding the Fourth Proportional to 408,405.76, 563,517.36 and 238,607.08

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Solution

The fourth proportional to 408,405.76, 563,517.36 and 238,607.08 is: 329,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,405.76 : 563,517.36 = 238,607.08 : x
  2. Step 2: Convert to fraction form
    408,405.76/563,517.36 = 238,607.08/x
  3. Step 3: Cross multiply
    408,405.76x = 563,517.36 × 238,607.08
  4. Step 4: Simplify right side
    408,405.76x = 134,459,231,798.91
  5. Step 5: Solve for x
    x = 134,459,231,798.91/408,405.76
  6. Step 6: Final answer
    x = 329,229.52

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