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Finding the Third Proportional to 988,459 and 2,158,163

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Solution

The third proportional to 988,459 and 2,158,163 is: 4,712,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,459 : 2,158,163 = 2,158,163 : x
  2. Step 2: Convert to fraction form
    988,459/2,158,163 = 2,158,163/x
  3. Step 3: Cross multiply
    988,459x = 2,158,163 × 2,158,163
  4. Step 4: Simplify right side
    988,459x = 4,657,667,534,569
  5. Step 5: Solve for x
    x = 4,657,667,534,569/988,459
  6. Step 6: Final answer
    x = 4,712,049.30

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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.