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Finding the Fourth Proportional to 396,867.60, 595,240.65 and 130,628.70

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Solution

The fourth proportional to 396,867.60, 595,240.65 and 130,628.70 is: 195,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,867.60 : 595,240.65 = 130,628.70 : x
  2. Step 2: Convert to fraction form
    396,867.60/595,240.65 = 130,628.70/x
  3. Step 3: Cross multiply
    396,867.60x = 595,240.65 × 130,628.70
  4. Step 4: Simplify right side
    396,867.60x = 77,755,512,296.66
  5. Step 5: Solve for x
    x = 77,755,512,296.66/396,867.60
  6. Step 6: Final answer
    x = 195,923.05

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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.