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Finding the Fourth Proportional to 444,704.79, 667,721.51 and 438,061.78

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Solution

The fourth proportional to 444,704.79, 667,721.51 and 438,061.78 is: 657,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,704.79 : 667,721.51 = 438,061.78 : x
  2. Step 2: Convert to fraction form
    444,704.79/667,721.51 = 438,061.78/x
  3. Step 3: Cross multiply
    444,704.79x = 667,721.51 × 438,061.78
  4. Step 4: Simplify right side
    444,704.79x = 292,503,273,501.96
  5. Step 5: Solve for x
    x = 292,503,273,501.96/444,704.79
  6. Step 6: Final answer
    x = 657,747.07

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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.