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Finding the Third Proportional to 988,869 and 2,117,703

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Solution

The third proportional to 988,869 and 2,117,703 is: 4,535,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,869 : 2,117,703 = 2,117,703 : x
  2. Step 2: Convert to fraction form
    988,869/2,117,703 = 2,117,703/x
  3. Step 3: Cross multiply
    988,869x = 2,117,703 × 2,117,703
  4. Step 4: Simplify right side
    988,869x = 4,484,665,996,209
  5. Step 5: Solve for x
    x = 4,484,665,996,209/988,869
  6. Step 6: Final answer
    x = 4,535,146.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.