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Finding the Third Proportional to 539,399 and 818,940

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Solution

The third proportional to 539,399 and 818,940 is: 1,243,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,399 : 818,940 = 818,940 : x
  2. Step 2: Convert to fraction form
    539,399/818,940 = 818,940/x
  3. Step 3: Cross multiply
    539,399x = 818,940 × 818,940
  4. Step 4: Simplify right side
    539,399x = 670,662,723,600
  5. Step 5: Solve for x
    x = 670,662,723,600/539,399
  6. Step 6: Final answer
    x = 1,243,351.81

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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.