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Finding the Third Proportional to 527 and 827

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Solution

The third proportional to 527 and 827 is: 1,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527 : 827 = 827 : x
  2. Step 2: Convert to fraction form
    527/827 = 827/x
  3. Step 3: Cross multiply
    527x = 827 × 827
  4. Step 4: Simplify right side
    527x = 683,929
  5. Step 5: Solve for x
    x = 683,929/527
  6. Step 6: Final answer
    x = 1,297.78

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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.