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Finding the Third Proportional to 454,280 and 988,102

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Solution

The third proportional to 454,280 and 988,102 is: 2,149,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,280 : 988,102 = 988,102 : x
  2. Step 2: Convert to fraction form
    454,280/988,102 = 988,102/x
  3. Step 3: Cross multiply
    454,280x = 988,102 × 988,102
  4. Step 4: Simplify right side
    454,280x = 976,345,562,404
  5. Step 5: Solve for x
    x = 976,345,562,404/454,280
  6. Step 6: Final answer
    x = 2,149,215.38

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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.