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Finding the Third Proportional to 311,656.50 and 672,522.75

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Solution

The third proportional to 311,656.50 and 672,522.75 is: 1,451,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,656.50 : 672,522.75 = 672,522.75 : x
  2. Step 2: Convert to fraction form
    311,656.50/672,522.75 = 672,522.75/x
  3. Step 3: Cross multiply
    311,656.50x = 672,522.75 × 672,522.75
  4. Step 4: Simplify right side
    311,656.50x = 452,286,849,267.56
  5. Step 5: Solve for x
    x = 452,286,849,267.56/311,656.50
  6. Step 6: Final answer
    x = 1,451,235.09

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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.