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Finding the Fourth Proportional to 629,144.28, 943,866 and 202,720.41

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Solution

The fourth proportional to 629,144.28, 943,866 and 202,720.41 is: 304,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,144.28 : 943,866 = 202,720.41 : x
  2. Step 2: Convert to fraction form
    629,144.28/943,866 = 202,720.41/x
  3. Step 3: Cross multiply
    629,144.28x = 943,866 × 202,720.41
  4. Step 4: Simplify right side
    629,144.28x = 191,340,902,505.06
  5. Step 5: Solve for x
    x = 191,340,902,505.06/629,144.28
  6. Step 6: Final answer
    x = 304,128.81

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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.