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Finding the Fourth Proportional to 468,218.79, 646,140.92 and 253,358.78

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Solution

The fourth proportional to 468,218.79, 646,140.92 and 253,358.78 is: 349,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,218.79 : 646,140.92 = 253,358.78 : x
  2. Step 2: Convert to fraction form
    468,218.79/646,140.92 = 253,358.78/x
  3. Step 3: Cross multiply
    468,218.79x = 646,140.92 × 253,358.78
  4. Step 4: Simplify right side
    468,218.79x = 163,705,470,701.78
  5. Step 5: Solve for x
    x = 163,705,470,701.78/468,218.79
  6. Step 6: Final answer
    x = 349,634.56

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