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Finding the Fourth Proportional to 508,471.78, 701,689.11 and 279,032.92

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Solution

The fourth proportional to 508,471.78, 701,689.11 and 279,032.92 is: 385,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,471.78 : 701,689.11 = 279,032.92 : x
  2. Step 2: Convert to fraction form
    508,471.78/701,689.11 = 279,032.92/x
  3. Step 3: Cross multiply
    508,471.78x = 701,689.11 × 279,032.92
  4. Step 4: Simplify right side
    508,471.78x = 195,794,361,295.50
  5. Step 5: Solve for x
    x = 195,794,361,295.50/508,471.78
  6. Step 6: Final answer
    x = 385,064.36

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