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Finding the Fourth Proportional to 643,630.20, 965,153.70 and 244,138.20

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Solution

The fourth proportional to 643,630.20, 965,153.70 and 244,138.20 is: 366,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,630.20 : 965,153.70 = 244,138.20 : x
  2. Step 2: Convert to fraction form
    643,630.20/965,153.70 = 244,138.20/x
  3. Step 3: Cross multiply
    643,630.20x = 965,153.70 × 244,138.20
  4. Step 4: Simplify right side
    643,630.20x = 235,630,887,041.34
  5. Step 5: Solve for x
    x = 235,630,887,041.34/643,630.20
  6. Step 6: Final answer
    x = 366,096.69

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