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Finding the Third Proportional to 858,722 and 1,129,539

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Solution

The third proportional to 858,722 and 1,129,539 is: 1,485,764.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,722 : 1,129,539 = 1,129,539 : x
  2. Step 2: Convert to fraction form
    858,722/1,129,539 = 1,129,539/x
  3. Step 3: Cross multiply
    858,722x = 1,129,539 × 1,129,539
  4. Step 4: Simplify right side
    858,722x = 1,275,858,352,521
  5. Step 5: Solve for x
    x = 1,275,858,352,521/858,722
  6. Step 6: Final answer
    x = 1,485,764.14

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.