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Finding the Fourth Proportional to 663,119.40, 994,095.90 and 396,985.80

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Solution

The fourth proportional to 663,119.40, 994,095.90 and 396,985.80 is: 595,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,119.40 : 994,095.90 = 396,985.80 : x
  2. Step 2: Convert to fraction form
    663,119.40/994,095.90 = 396,985.80/x
  3. Step 3: Cross multiply
    663,119.40x = 994,095.90 × 396,985.80
  4. Step 4: Simplify right side
    663,119.40x = 394,641,956,138.22
  5. Step 5: Solve for x
    x = 394,641,956,138.22/663,119.40
  6. Step 6: Final answer
    x = 595,129.56

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