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Finding the Fourth Proportional to 629,744.40, 944,908.20 and 330,562.80

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Solution

The fourth proportional to 629,744.40, 944,908.20 and 330,562.80 is: 495,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,744.40 : 944,908.20 = 330,562.80 : x
  2. Step 2: Convert to fraction form
    629,744.40/944,908.20 = 330,562.80/x
  3. Step 3: Cross multiply
    629,744.40x = 944,908.20 × 330,562.80
  4. Step 4: Simplify right side
    629,744.40x = 312,351,500,334.96
  5. Step 5: Solve for x
    x = 312,351,500,334.96/629,744.40
  6. Step 6: Final answer
    x = 495,997.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.