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Finding the Fourth Proportional to 392,976.27, 542,364.69 and 220,908.41

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Solution

The fourth proportional to 392,976.27, 542,364.69 and 220,908.41 is: 304,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,976.27 : 542,364.69 = 220,908.41 : x
  2. Step 2: Convert to fraction form
    392,976.27/542,364.69 = 220,908.41/x
  3. Step 3: Cross multiply
    392,976.27x = 542,364.69 × 220,908.41
  4. Step 4: Simplify right side
    392,976.27x = 119,812,920,215.88
  5. Step 5: Solve for x
    x = 119,812,920,215.88/392,976.27
  6. Step 6: Final answer
    x = 304,885.89

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