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Finding the Third Proportional to 535,920 and 853,080

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Solution

The third proportional to 535,920 and 853,080 is: 1,357,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,920 : 853,080 = 853,080 : x
  2. Step 2: Convert to fraction form
    535,920/853,080 = 853,080/x
  3. Step 3: Cross multiply
    535,920x = 853,080 × 853,080
  4. Step 4: Simplify right side
    535,920x = 727,745,486,400
  5. Step 5: Solve for x
    x = 727,745,486,400/535,920
  6. Step 6: Final answer
    x = 1,357,936.79

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.