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Finding the Fourth Proportional to 493,990.52, 681,689.45 and 279,125.97

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Solution

The fourth proportional to 493,990.52, 681,689.45 and 279,125.97 is: 385,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,990.52 : 681,689.45 = 279,125.97 : x
  2. Step 2: Convert to fraction form
    493,990.52/681,689.45 = 279,125.97/x
  3. Step 3: Cross multiply
    493,990.52x = 681,689.45 × 279,125.97
  4. Step 4: Simplify right side
    493,990.52x = 190,277,227,111.50
  5. Step 5: Solve for x
    x = 190,277,227,111.50/493,990.52
  6. Step 6: Final answer
    x = 385,183.97

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