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Finding the Third Proportional to 621,475 and 1,353,663

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Solution

The third proportional to 621,475 and 1,353,663 is: 2,948,475.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,475 : 1,353,663 = 1,353,663 : x
  2. Step 2: Convert to fraction form
    621,475/1,353,663 = 1,353,663/x
  3. Step 3: Cross multiply
    621,475x = 1,353,663 × 1,353,663
  4. Step 4: Simplify right side
    621,475x = 1,832,403,517,569
  5. Step 5: Solve for x
    x = 1,832,403,517,569/621,475
  6. Step 6: Final answer
    x = 2,948,475.03

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.