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Finding the Fourth Proportional to 728,076.80, 1,091,920.80 and 254,712.80

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Solution

The fourth proportional to 728,076.80, 1,091,920.80 and 254,712.80 is: 382,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,076.80 : 1,091,920.80 = 254,712.80 : x
  2. Step 2: Convert to fraction form
    728,076.80/1,091,920.80 = 254,712.80/x
  3. Step 3: Cross multiply
    728,076.80x = 1,091,920.80 × 254,712.80
  4. Step 4: Simplify right side
    728,076.80x = 278,126,204,346.24
  5. Step 5: Solve for x
    x = 278,126,204,346.24/728,076.80
  6. Step 6: Final answer
    x = 382,001.19

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