Home / 419,729.25-579,209.46-228,738.54

Finding the Fourth Proportional to 419,729.25, 579,209.46 and 228,738.54

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Solution

The fourth proportional to 419,729.25, 579,209.46 and 228,738.54 is: 315,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,729.25 : 579,209.46 = 228,738.54 : x
  2. Step 2: Convert to fraction form
    419,729.25/579,209.46 = 228,738.54/x
  3. Step 3: Cross multiply
    419,729.25x = 579,209.46 × 228,738.54
  4. Step 4: Simplify right side
    419,729.25x = 132,487,526,234.59
  5. Step 5: Solve for x
    x = 132,487,526,234.59/419,729.25
  6. Step 6: Final answer
    x = 315,649.97

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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.