Home / 419,708.05-579,195.19-228,721.39

Finding the Fourth Proportional to 419,708.05, 579,195.19 and 228,721.39

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Solution

The fourth proportional to 419,708.05, 579,195.19 and 228,721.39 is: 315,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,708.05 : 579,195.19 = 228,721.39 : x
  2. Step 2: Convert to fraction form
    419,708.05/579,195.19 = 228,721.39/x
  3. Step 3: Cross multiply
    419,708.05x = 579,195.19 × 228,721.39
  4. Step 4: Simplify right side
    419,708.05x = 132,474,327,776.03
  5. Step 5: Solve for x
    x = 132,474,327,776.03/419,708.05
  6. Step 6: Final answer
    x = 315,634.47

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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.