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Finding the Third Proportional to 629,127 and 879,660

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Solution

The third proportional to 629,127 and 879,660 is: 1,229,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,127 : 879,660 = 879,660 : x
  2. Step 2: Convert to fraction form
    629,127/879,660 = 879,660/x
  3. Step 3: Cross multiply
    629,127x = 879,660 × 879,660
  4. Step 4: Simplify right side
    629,127x = 773,801,715,600
  5. Step 5: Solve for x
    x = 773,801,715,600/629,127
  6. Step 6: Final answer
    x = 1,229,961.07

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.