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Finding the Third Proportional to 666,782 and 1,440,187

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Solution

The third proportional to 666,782 and 1,440,187 is: 3,110,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,782 : 1,440,187 = 1,440,187 : x
  2. Step 2: Convert to fraction form
    666,782/1,440,187 = 1,440,187/x
  3. Step 3: Cross multiply
    666,782x = 1,440,187 × 1,440,187
  4. Step 4: Simplify right side
    666,782x = 2,074,138,594,969
  5. Step 5: Solve for x
    x = 2,074,138,594,969/666,782
  6. Step 6: Final answer
    x = 3,110,669.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.