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Finding the Fourth Proportional to 431,938.96, 647,903.76 and 147,626.80

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Solution

The fourth proportional to 431,938.96, 647,903.76 and 147,626.80 is: 221,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,938.96 : 647,903.76 = 147,626.80 : x
  2. Step 2: Convert to fraction form
    431,938.96/647,903.76 = 147,626.80/x
  3. Step 3: Cross multiply
    431,938.96x = 647,903.76 × 147,626.80
  4. Step 4: Simplify right side
    431,938.96x = 95,647,958,796.77
  5. Step 5: Solve for x
    x = 95,647,958,796.77/431,938.96
  6. Step 6: Final answer
    x = 221,438.60

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