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Finding the Third Proportional to 685,597.50 and 1,489,131

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Solution

The third proportional to 685,597.50 and 1,489,131 is: 3,234,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,597.50 : 1,489,131 = 1,489,131 : x
  2. Step 2: Convert to fraction form
    685,597.50/1,489,131 = 1,489,131/x
  3. Step 3: Cross multiply
    685,597.50x = 1,489,131 × 1,489,131
  4. Step 4: Simplify right side
    685,597.50x = 2,217,511,135,161
  5. Step 5: Solve for x
    x = 2,217,511,135,161/685,597.50
  6. Step 6: Final answer
    x = 3,234,421.27

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.