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Finding the Third Proportional to 313,887 and 670,866

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Solution

The third proportional to 313,887 and 670,866 is: 1,433,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,887 : 670,866 = 670,866 : x
  2. Step 2: Convert to fraction form
    313,887/670,866 = 670,866/x
  3. Step 3: Cross multiply
    313,887x = 670,866 × 670,866
  4. Step 4: Simplify right side
    313,887x = 450,061,189,956
  5. Step 5: Solve for x
    x = 450,061,189,956/313,887
  6. Step 6: Final answer
    x = 1,433,831.89

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.