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Finding the Fourth Proportional to 403,829.02, 605,721.60 and 123,324.40

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Solution

The fourth proportional to 403,829.02, 605,721.60 and 123,324.40 is: 184,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,829.02 : 605,721.60 = 123,324.40 : x
  2. Step 2: Convert to fraction form
    403,829.02/605,721.60 = 123,324.40/x
  3. Step 3: Cross multiply
    403,829.02x = 605,721.60 × 123,324.40
  4. Step 4: Simplify right side
    403,829.02x = 74,700,252,887.04
  5. Step 5: Solve for x
    x = 74,700,252,887.04/403,829.02
  6. Step 6: Final answer
    x = 184,979.90

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