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Finding the Fourth Proportional to 719,499.26, 992,882.85 and 397,202.43

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Solution

The fourth proportional to 719,499.26, 992,882.85 and 397,202.43 is: 548,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,499.26 : 992,882.85 = 397,202.43 : x
  2. Step 2: Convert to fraction form
    719,499.26/992,882.85 = 397,202.43/x
  3. Step 3: Cross multiply
    719,499.26x = 992,882.85 × 397,202.43
  4. Step 4: Simplify right side
    719,499.26x = 394,375,480,725.33
  5. Step 5: Solve for x
    x = 394,375,480,725.33/719,499.26
  6. Step 6: Final answer
    x = 548,124.93

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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.