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Finding the Third Proportional to 308,317 and 672,512

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Solution

The third proportional to 308,317 and 672,512 is: 1,466,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,317 : 672,512 = 672,512 : x
  2. Step 2: Convert to fraction form
    308,317/672,512 = 672,512/x
  3. Step 3: Cross multiply
    308,317x = 672,512 × 672,512
  4. Step 4: Simplify right side
    308,317x = 452,272,390,144
  5. Step 5: Solve for x
    x = 452,272,390,144/308,317
  6. Step 6: Final answer
    x = 1,466,907.08

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.