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Finding the Third Proportional to 791,021 and 1,638,118

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Solution

The third proportional to 791,021 and 1,638,118 is: 3,392,363.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,021 : 1,638,118 = 1,638,118 : x
  2. Step 2: Convert to fraction form
    791,021/1,638,118 = 1,638,118/x
  3. Step 3: Cross multiply
    791,021x = 1,638,118 × 1,638,118
  4. Step 4: Simplify right side
    791,021x = 2,683,430,581,924
  5. Step 5: Solve for x
    x = 2,683,430,581,924/791,021
  6. Step 6: Final answer
    x = 3,392,363.26

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.