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Finding the Third Proportional to 316,752 and 672,372

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Solution

The third proportional to 316,752 and 672,372 is: 1,427,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,752 : 672,372 = 672,372 : x
  2. Step 2: Convert to fraction form
    316,752/672,372 = 672,372/x
  3. Step 3: Cross multiply
    316,752x = 672,372 × 672,372
  4. Step 4: Simplify right side
    316,752x = 452,084,106,384
  5. Step 5: Solve for x
    x = 452,084,106,384/316,752
  6. Step 6: Final answer
    x = 1,427,249.41

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.