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Finding the Fourth Proportional to 691,898.50, 954,324.57 and 449,729.38

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Solution

The fourth proportional to 691,898.50, 954,324.57 and 449,729.38 is: 620,304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,898.50 : 954,324.57 = 449,729.38 : x
  2. Step 2: Convert to fraction form
    691,898.50/954,324.57 = 449,729.38/x
  3. Step 3: Cross multiply
    691,898.50x = 954,324.57 × 449,729.38
  4. Step 4: Simplify right side
    691,898.50x = 429,187,797,184.87
  5. Step 5: Solve for x
    x = 429,187,797,184.87/691,898.50
  6. Step 6: Final answer
    x = 620,304.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.