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Finding the Fourth Proportional to 657,079.13, 906,769.20 and 355,273.13

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Solution

The fourth proportional to 657,079.13, 906,769.20 and 355,273.13 is: 490,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,079.13 : 906,769.20 = 355,273.13 : x
  2. Step 2: Convert to fraction form
    657,079.13/906,769.20 = 355,273.13/x
  3. Step 3: Cross multiply
    657,079.13x = 906,769.20 × 355,273.13
  4. Step 4: Simplify right side
    657,079.13x = 322,150,727,337.75
  5. Step 5: Solve for x
    x = 322,150,727,337.75/657,079.13
  6. Step 6: Final answer
    x = 490,276.92

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