Home / 422,121.80-582,529.02-228,531.55

Finding the Fourth Proportional to 422,121.80, 582,529.02 and 228,531.55

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Solution

The fourth proportional to 422,121.80, 582,529.02 and 228,531.55 is: 315,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,121.80 : 582,529.02 = 228,531.55 : x
  2. Step 2: Convert to fraction form
    422,121.80/582,529.02 = 228,531.55/x
  3. Step 3: Cross multiply
    422,121.80x = 582,529.02 × 228,531.55
  4. Step 4: Simplify right side
    422,121.80x = 133,126,258,597.76
  5. Step 5: Solve for x
    x = 133,126,258,597.76/422,121.80
  6. Step 6: Final answer
    x = 315,374.04

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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.