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Finding the Fourth Proportional to 663,638.60, 994,680.30 and 497,232.20

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Solution

The fourth proportional to 663,638.60, 994,680.30 and 497,232.20 is: 745,265.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,638.60 : 994,680.30 = 497,232.20 : x
  2. Step 2: Convert to fraction form
    663,638.60/994,680.30 = 497,232.20/x
  3. Step 3: Cross multiply
    663,638.60x = 994,680.30 × 497,232.20
  4. Step 4: Simplify right side
    663,638.60x = 494,587,073,865.66
  5. Step 5: Solve for x
    x = 494,587,073,865.66/663,638.60
  6. Step 6: Final answer
    x = 745,265.68

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