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Finding the Third Proportional to 620,266 and 1,315,812

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Solution

The third proportional to 620,266 and 1,315,812 is: 2,791,320.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,266 : 1,315,812 = 1,315,812 : x
  2. Step 2: Convert to fraction form
    620,266/1,315,812 = 1,315,812/x
  3. Step 3: Cross multiply
    620,266x = 1,315,812 × 1,315,812
  4. Step 4: Simplify right side
    620,266x = 1,731,361,219,344
  5. Step 5: Solve for x
    x = 1,731,361,219,344/620,266
  6. Step 6: Final answer
    x = 2,791,320.53

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.