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Finding the Fourth Proportional to 396,370.40, 594,555.60 and 254,652.80

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Solution

The fourth proportional to 396,370.40, 594,555.60 and 254,652.80 is: 381,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,370.40 : 594,555.60 = 254,652.80 : x
  2. Step 2: Convert to fraction form
    396,370.40/594,555.60 = 254,652.80/x
  3. Step 3: Cross multiply
    396,370.40x = 594,555.60 × 254,652.80
  4. Step 4: Simplify right side
    396,370.40x = 151,405,248,295.68
  5. Step 5: Solve for x
    x = 151,405,248,295.68/396,370.40
  6. Step 6: Final answer
    x = 381,979.20

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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.