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Finding the Third Proportional to 411.19 and 576.84

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Solution

The third proportional to 411.19 and 576.84 is: 809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.19 : 576.84 = 576.84 : x
  2. Step 2: Convert to fraction form
    411.19/576.84 = 576.84/x
  3. Step 3: Cross multiply
    411.19x = 576.84 × 576.84
  4. Step 4: Simplify right side
    411.19x = 332,748.71
  5. Step 5: Solve for x
    x = 332,748.71/411.19
  6. Step 6: Final answer
    x = 809.24

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.