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Finding the Third Proportional to 786.80 and 1,624.22

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Solution

The third proportional to 786.80 and 1,624.22 is: 3,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    786.80 : 1,624.22 = 1,624.22 : x
  2. Step 2: Convert to fraction form
    786.80/1,624.22 = 1,624.22/x
  3. Step 3: Cross multiply
    786.80x = 1,624.22 × 1,624.22
  4. Step 4: Simplify right side
    786.80x = 2,638,086.55
  5. Step 5: Solve for x
    x = 2,638,086.55/786.80
  6. Step 6: Final answer
    x = 3,352.94

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.