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Finding the Third Proportional to 445,080 and 683,172

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Solution

The third proportional to 445,080 and 683,172 is: 1,048,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,080 : 683,172 = 683,172 : x
  2. Step 2: Convert to fraction form
    445,080/683,172 = 683,172/x
  3. Step 3: Cross multiply
    445,080x = 683,172 × 683,172
  4. Step 4: Simplify right side
    445,080x = 466,723,981,584
  5. Step 5: Solve for x
    x = 466,723,981,584/445,080
  6. Step 6: Final answer
    x = 1,048,629.42

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.