Home / 419,743.59-579,229.29-228,752.88

Finding the Fourth Proportional to 419,743.59, 579,229.29 and 228,752.88

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Solution

The fourth proportional to 419,743.59, 579,229.29 and 228,752.88 is: 315,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,743.59 : 579,229.29 = 228,752.88 : x
  2. Step 2: Convert to fraction form
    419,743.59/579,229.29 = 228,752.88/x
  3. Step 3: Cross multiply
    419,743.59x = 579,229.29 × 228,752.88
  4. Step 4: Simplify right side
    419,743.59x = 132,500,368,267.86
  5. Step 5: Solve for x
    x = 132,500,368,267.86/419,743.59
  6. Step 6: Final answer
    x = 315,669.78

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1.5x scale

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.