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Finding the Third Proportional to 720,828 and 1,081,242

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Solution

The third proportional to 720,828 and 1,081,242 is: 1,621,863

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,828 : 1,081,242 = 1,081,242 : x
  2. Step 2: Convert to fraction form
    720,828/1,081,242 = 1,081,242/x
  3. Step 3: Cross multiply
    720,828x = 1,081,242 × 1,081,242
  4. Step 4: Simplify right side
    720,828x = 1,169,084,262,564
  5. Step 5: Solve for x
    x = 1,169,084,262,564/720,828
  6. Step 6: Final answer
    x = 1,621,863

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.