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Finding the Fourth Proportional to 663,152.80, 994,729.20 and 219,920.80

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Solution

The fourth proportional to 663,152.80, 994,729.20 and 219,920.80 is: 329,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,152.80 : 994,729.20 = 219,920.80 : x
  2. Step 2: Convert to fraction form
    663,152.80/994,729.20 = 219,920.80/x
  3. Step 3: Cross multiply
    663,152.80x = 994,729.20 × 219,920.80
  4. Step 4: Simplify right side
    663,152.80x = 218,761,641,447.36
  5. Step 5: Solve for x
    x = 218,761,641,447.36/663,152.80
  6. Step 6: Final answer
    x = 329,881.20

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