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Finding the Third Proportional to 691,810 and 883,973

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Solution

The third proportional to 691,810 and 883,973 is: 1,129,512.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,810 : 883,973 = 883,973 : x
  2. Step 2: Convert to fraction form
    691,810/883,973 = 883,973/x
  3. Step 3: Cross multiply
    691,810x = 883,973 × 883,973
  4. Step 4: Simplify right side
    691,810x = 781,408,264,729
  5. Step 5: Solve for x
    x = 781,408,264,729/691,810
  6. Step 6: Final answer
    x = 1,129,512.82

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.