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Finding the Third Proportional to 349,740 and 531,449

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Solution

The third proportional to 349,740 and 531,449 is: 807,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,740 : 531,449 = 531,449 : x
  2. Step 2: Convert to fraction form
    349,740/531,449 = 531,449/x
  3. Step 3: Cross multiply
    349,740x = 531,449 × 531,449
  4. Step 4: Simplify right side
    349,740x = 282,438,039,601
  5. Step 5: Solve for x
    x = 282,438,039,601/349,740
  6. Step 6: Final answer
    x = 807,565.73

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Why These Related Problems?

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