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Finding the Fourth Proportional to 396,885.26, 595,280.72 and 130,579.74

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Solution

The fourth proportional to 396,885.26, 595,280.72 and 130,579.74 is: 195,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,885.26 : 595,280.72 = 130,579.74 : x
  2. Step 2: Convert to fraction form
    396,885.26/595,280.72 = 130,579.74/x
  3. Step 3: Cross multiply
    396,885.26x = 595,280.72 × 130,579.74
  4. Step 4: Simplify right side
    396,885.26x = 77,731,601,644.61
  5. Step 5: Solve for x
    x = 77,731,601,644.61/396,885.26
  6. Step 6: Final answer
    x = 195,854.09

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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.