Home / 415,785.60-622,615.68-228,591.36

Finding the Fourth Proportional to 415,785.60, 622,615.68 and 228,591.36

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Solution

The fourth proportional to 415,785.60, 622,615.68 and 228,591.36 is: 342,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,785.60 : 622,615.68 = 228,591.36 : x
  2. Step 2: Convert to fraction form
    415,785.60/622,615.68 = 228,591.36/x
  3. Step 3: Cross multiply
    415,785.60x = 622,615.68 × 228,591.36
  4. Step 4: Simplify right side
    415,785.60x = 142,324,565,048.53
  5. Step 5: Solve for x
    x = 142,324,565,048.53/415,785.60
  6. Step 6: Final answer
    x = 342,302.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.