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Finding the Third Proportional to 352,560 and 771,872

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Solution

The third proportional to 352,560 and 771,872 is: 1,689,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,560 : 771,872 = 771,872 : x
  2. Step 2: Convert to fraction form
    352,560/771,872 = 771,872/x
  3. Step 3: Cross multiply
    352,560x = 771,872 × 771,872
  4. Step 4: Simplify right side
    352,560x = 595,786,384,384
  5. Step 5: Solve for x
    x = 595,786,384,384/352,560
  6. Step 6: Final answer
    x = 1,689,886.50

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.