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Finding the Fourth Proportional to 484,312.80, 726,728.40 and 218,114.40

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Solution

The fourth proportional to 484,312.80, 726,728.40 and 218,114.40 is: 327,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,312.80 : 726,728.40 = 218,114.40 : x
  2. Step 2: Convert to fraction form
    484,312.80/726,728.40 = 218,114.40/x
  3. Step 3: Cross multiply
    484,312.80x = 726,728.40 × 218,114.40
  4. Step 4: Simplify right side
    484,312.80x = 158,509,928,928.96
  5. Step 5: Solve for x
    x = 158,509,928,928.96/484,312.80
  6. Step 6: Final answer
    x = 327,288.33

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