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Finding the Third Proportional to 408,808 and 879,770

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Solution

The third proportional to 408,808 and 879,770 is: 1,893,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,808 : 879,770 = 879,770 : x
  2. Step 2: Convert to fraction form
    408,808/879,770 = 879,770/x
  3. Step 3: Cross multiply
    408,808x = 879,770 × 879,770
  4. Step 4: Simplify right side
    408,808x = 773,995,252,900
  5. Step 5: Solve for x
    x = 773,995,252,900/408,808
  6. Step 6: Final answer
    x = 1,893,297.72

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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.