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Finding the Third Proportional to 408,892 and 879,992

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Solution

The third proportional to 408,892 and 879,992 is: 1,893,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,892 : 879,992 = 879,992 : x
  2. Step 2: Convert to fraction form
    408,892/879,992 = 879,992/x
  3. Step 3: Cross multiply
    408,892x = 879,992 × 879,992
  4. Step 4: Simplify right side
    408,892x = 774,385,920,064
  5. Step 5: Solve for x
    x = 774,385,920,064/408,892
  6. Step 6: Final answer
    x = 1,893,864.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.