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Finding the Third Proportional to 396,589 and 604,175.50

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Solution

The third proportional to 396,589 and 604,175.50 is: 920,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,589 : 604,175.50 = 604,175.50 : x
  2. Step 2: Convert to fraction form
    396,589/604,175.50 = 604,175.50/x
  3. Step 3: Cross multiply
    396,589x = 604,175.50 × 604,175.50
  4. Step 4: Simplify right side
    396,589x = 365,028,034,800.25
  5. Step 5: Solve for x
    x = 365,028,034,800.25/396,589
  6. Step 6: Final answer
    x = 920,418.96

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.