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Finding the Fourth Proportional to 396,654.72, 594,855.84 and 130,353.60

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Solution

The fourth proportional to 396,654.72, 594,855.84 and 130,353.60 is: 195,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,654.72 : 594,855.84 = 130,353.60 : x
  2. Step 2: Convert to fraction form
    396,654.72/594,855.84 = 130,353.60/x
  3. Step 3: Cross multiply
    396,654.72x = 594,855.84 × 130,353.60
  4. Step 4: Simplify right side
    396,654.72x = 77,541,600,225.02
  5. Step 5: Solve for x
    x = 77,541,600,225.02/396,654.72
  6. Step 6: Final answer
    x = 195,488.91

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1.5x scale

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.