Home / 419,729.15-579,209.33-228,738.44

Finding the Fourth Proportional to 419,729.15, 579,209.33 and 228,738.44

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Solution

The fourth proportional to 419,729.15, 579,209.33 and 228,738.44 is: 315,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,729.15 : 579,209.33 = 228,738.44 : x
  2. Step 2: Convert to fraction form
    419,729.15/579,209.33 = 228,738.44/x
  3. Step 3: Cross multiply
    419,729.15x = 579,209.33 × 228,738.44
  4. Step 4: Simplify right side
    419,729.15x = 132,487,440,597.52
  5. Step 5: Solve for x
    x = 132,487,440,597.52/419,729.15
  6. Step 6: Final answer
    x = 315,649.84

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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.