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Finding the Third Proportional to 685,741.78 and 1,086,739.03

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Solution

The third proportional to 685,741.78 and 1,086,739.03 is: 1,722,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,741.78 : 1,086,739.03 = 1,086,739.03 : x
  2. Step 2: Convert to fraction form
    685,741.78/1,086,739.03 = 1,086,739.03/x
  3. Step 3: Cross multiply
    685,741.78x = 1,086,739.03 × 1,086,739.03
  4. Step 4: Simplify right side
    685,741.78x = 1,181,001,722,042.19
  5. Step 5: Solve for x
    x = 1,181,001,722,042.19/685,741.78
  6. Step 6: Final answer
    x = 1,722,225.12

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.