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Finding the Fourth Proportional to 519,876.80, 779,815.20 and 125,892.80

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Solution

The fourth proportional to 519,876.80, 779,815.20 and 125,892.80 is: 188,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,876.80 : 779,815.20 = 125,892.80 : x
  2. Step 2: Convert to fraction form
    519,876.80/779,815.20 = 125,892.80/x
  3. Step 3: Cross multiply
    519,876.80x = 779,815.20 × 125,892.80
  4. Step 4: Simplify right side
    519,876.80x = 98,173,119,010.56
  5. Step 5: Solve for x
    x = 98,173,119,010.56/519,876.80
  6. Step 6: Final answer
    x = 188,839.20

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