Home / 419,606.10-579,057.39-228,622.68

Finding the Fourth Proportional to 419,606.10, 579,057.39 and 228,622.68

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Solution

The fourth proportional to 419,606.10, 579,057.39 and 228,622.68 is: 315,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,606.10 : 579,057.39 = 228,622.68 : x
  2. Step 2: Convert to fraction form
    419,606.10/579,057.39 = 228,622.68/x
  3. Step 3: Cross multiply
    419,606.10x = 579,057.39 × 228,622.68
  4. Step 4: Simplify right side
    419,606.10x = 132,385,652,375.61
  5. Step 5: Solve for x
    x = 132,385,652,375.61/419,606.10
  6. Step 6: Final answer
    x = 315,499.83

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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.