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Finding the Fourth Proportional to 485,629.72, 728,552.82 and 148,717.72

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Solution

The fourth proportional to 485,629.72, 728,552.82 and 148,717.72 is: 223,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,629.72 : 728,552.82 = 148,717.72 : x
  2. Step 2: Convert to fraction form
    485,629.72/728,552.82 = 148,717.72/x
  3. Step 3: Cross multiply
    485,629.72x = 728,552.82 × 148,717.72
  4. Step 4: Simplify right side
    485,629.72x = 108,348,714,289.97
  5. Step 5: Solve for x
    x = 108,348,714,289.97/485,629.72
  6. Step 6: Final answer
    x = 223,109.73

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