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Finding the Fourth Proportional to 410,617.28, 615,927.35 and 126,305.90

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Solution

The fourth proportional to 410,617.28, 615,927.35 and 126,305.90 is: 189,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,617.28 : 615,927.35 = 126,305.90 : x
  2. Step 2: Convert to fraction form
    410,617.28/615,927.35 = 126,305.90/x
  3. Step 3: Cross multiply
    410,617.28x = 615,927.35 × 126,305.90
  4. Step 4: Simplify right side
    410,617.28x = 77,795,256,105.02
  5. Step 5: Solve for x
    x = 77,795,256,105.02/410,617.28
  6. Step 6: Final answer
    x = 189,459.29

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