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Finding the Third Proportional to 311,856 and 673,600

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Solution

The third proportional to 311,856 and 673,600 is: 1,454,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,856 : 673,600 = 673,600 : x
  2. Step 2: Convert to fraction form
    311,856/673,600 = 673,600/x
  3. Step 3: Cross multiply
    311,856x = 673,600 × 673,600
  4. Step 4: Simplify right side
    311,856x = 453,736,960,000
  5. Step 5: Solve for x
    x = 453,736,960,000/311,856
  6. Step 6: Final answer
    x = 1,454,956.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.