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Finding the Third Proportional to 641,809 and 1,374,702

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Solution

The third proportional to 641,809 and 1,374,702 is: 2,944,498.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,809 : 1,374,702 = 1,374,702 : x
  2. Step 2: Convert to fraction form
    641,809/1,374,702 = 1,374,702/x
  3. Step 3: Cross multiply
    641,809x = 1,374,702 × 1,374,702
  4. Step 4: Simplify right side
    641,809x = 1,889,805,588,804
  5. Step 5: Solve for x
    x = 1,889,805,588,804/641,809
  6. Step 6: Final answer
    x = 2,944,498.42

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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.