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Finding the Third Proportional to 340,787 and 534,638

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Solution

The third proportional to 340,787 and 534,638 is: 838,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,787 : 534,638 = 534,638 : x
  2. Step 2: Convert to fraction form
    340,787/534,638 = 534,638/x
  3. Step 3: Cross multiply
    340,787x = 534,638 × 534,638
  4. Step 4: Simplify right side
    340,787x = 285,837,791,044
  5. Step 5: Solve for x
    x = 285,837,791,044/340,787
  6. Step 6: Final answer
    x = 838,757.91

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.