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Finding the Third Proportional to 628,622 and 1,356,820

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Solution

The third proportional to 628,622 and 1,356,820 is: 2,928,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,622 : 1,356,820 = 1,356,820 : x
  2. Step 2: Convert to fraction form
    628,622/1,356,820 = 1,356,820/x
  3. Step 3: Cross multiply
    628,622x = 1,356,820 × 1,356,820
  4. Step 4: Simplify right side
    628,622x = 1,840,960,512,400
  5. Step 5: Solve for x
    x = 1,840,960,512,400/628,622
  6. Step 6: Final answer
    x = 2,928,565.20

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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.