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Finding the Third Proportional to 550,800 and 873,720

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Solution

The third proportional to 550,800 and 873,720 is: 1,385,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,800 : 873,720 = 873,720 : x
  2. Step 2: Convert to fraction form
    550,800/873,720 = 873,720/x
  3. Step 3: Cross multiply
    550,800x = 873,720 × 873,720
  4. Step 4: Simplify right side
    550,800x = 763,386,638,400
  5. Step 5: Solve for x
    x = 763,386,638,400/550,800
  6. Step 6: Final answer
    x = 1,385,959.76

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.