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Finding the Third Proportional to 490,689 and 1,058,745

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Solution

The third proportional to 490,689 and 1,058,745 is: 2,284,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,689 : 1,058,745 = 1,058,745 : x
  2. Step 2: Convert to fraction form
    490,689/1,058,745 = 1,058,745/x
  3. Step 3: Cross multiply
    490,689x = 1,058,745 × 1,058,745
  4. Step 4: Simplify right side
    490,689x = 1,120,940,975,025
  5. Step 5: Solve for x
    x = 1,120,940,975,025/490,689
  6. Step 6: Final answer
    x = 2,284,422.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.