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Finding the Fourth Proportional to 899,993.40, 1,348,695.22 and 387,517.85

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Solution

The fourth proportional to 899,993.40, 1,348,695.22 and 387,517.85 is: 580,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,993.40 : 1,348,695.22 = 387,517.85 : x
  2. Step 2: Convert to fraction form
    899,993.40/1,348,695.22 = 387,517.85/x
  3. Step 3: Cross multiply
    899,993.40x = 1,348,695.22 × 387,517.85
  4. Step 4: Simplify right side
    899,993.40x = 522,643,471,959.68
  5. Step 5: Solve for x
    x = 522,643,471,959.68/899,993.40
  6. Step 6: Final answer
    x = 580,719.23

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