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Finding the Third Proportional to 402,450 and 852,872

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Solution

The third proportional to 402,450 and 852,872 is: 1,807,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,450 : 852,872 = 852,872 : x
  2. Step 2: Convert to fraction form
    402,450/852,872 = 852,872/x
  3. Step 3: Cross multiply
    402,450x = 852,872 × 852,872
  4. Step 4: Simplify right side
    402,450x = 727,390,648,384
  5. Step 5: Solve for x
    x = 727,390,648,384/402,450
  6. Step 6: Final answer
    x = 1,807,406.26

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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.