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Finding the Fourth Proportional to 485,938.72, 728,925.16 and 130,961.22

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Solution

The fourth proportional to 485,938.72, 728,925.16 and 130,961.22 is: 196,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,938.72 : 728,925.16 = 130,961.22 : x
  2. Step 2: Convert to fraction form
    485,938.72/728,925.16 = 130,961.22/x
  3. Step 3: Cross multiply
    485,938.72x = 728,925.16 × 130,961.22
  4. Step 4: Simplify right side
    485,938.72x = 95,460,928,242.30
  5. Step 5: Solve for x
    x = 95,460,928,242.30/485,938.72
  6. Step 6: Final answer
    x = 196,446.43

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