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Finding the Third Proportional to 315,747 and 676,326

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Solution

The third proportional to 315,747 and 676,326 is: 1,448,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,747 : 676,326 = 676,326 : x
  2. Step 2: Convert to fraction form
    315,747/676,326 = 676,326/x
  3. Step 3: Cross multiply
    315,747x = 676,326 × 676,326
  4. Step 4: Simplify right side
    315,747x = 457,416,858,276
  5. Step 5: Solve for x
    x = 457,416,858,276/315,747
  6. Step 6: Final answer
    x = 1,448,681.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.