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Finding the Third Proportional to 1,982,572 and 4,220,888

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Solution

The third proportional to 1,982,572 and 4,220,888 is: 8,986,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,572 : 4,220,888 = 4,220,888 : x
  2. Step 2: Convert to fraction form
    1,982,572/4,220,888 = 4,220,888/x
  3. Step 3: Cross multiply
    1,982,572x = 4,220,888 × 4,220,888
  4. Step 4: Simplify right side
    1,982,572x = 17,815,895,508,544
  5. Step 5: Solve for x
    x = 17,815,895,508,544/1,982,572
  6. Step 6: Final answer
    x = 8,986,253.97

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.