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Finding the Fourth Proportional to 347,793.20, 520,912.20 and 268,650.80

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Solution

The fourth proportional to 347,793.20, 520,912.20 and 268,650.80 is: 402,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,793.20 : 520,912.20 = 268,650.80 : x
  2. Step 2: Convert to fraction form
    347,793.20/520,912.20 = 268,650.80/x
  3. Step 3: Cross multiply
    347,793.20x = 520,912.20 × 268,650.80
  4. Step 4: Simplify right side
    347,793.20x = 139,943,479,259.76
  5. Step 5: Solve for x
    x = 139,943,479,259.76/347,793.20
  6. Step 6: Final answer
    x = 402,375.55

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