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Finding the Third Proportional to 820,890 and 1,228,032

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Solution

The third proportional to 820,890 and 1,228,032 is: 1,837,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,890 : 1,228,032 = 1,228,032 : x
  2. Step 2: Convert to fraction form
    820,890/1,228,032 = 1,228,032/x
  3. Step 3: Cross multiply
    820,890x = 1,228,032 × 1,228,032
  4. Step 4: Simplify right side
    820,890x = 1,508,062,593,024
  5. Step 5: Solve for x
    x = 1,508,062,593,024/820,890
  6. Step 6: Final answer
    x = 1,837,106.79

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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.