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Finding the Third Proportional to 402,448 and 852,858

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Solution

The third proportional to 402,448 and 852,858 is: 1,807,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,448 : 852,858 = 852,858 : x
  2. Step 2: Convert to fraction form
    402,448/852,858 = 852,858/x
  3. Step 3: Cross multiply
    402,448x = 852,858 × 852,858
  4. Step 4: Simplify right side
    402,448x = 727,366,768,164
  5. Step 5: Solve for x
    x = 727,366,768,164/402,448
  6. Step 6: Final answer
    x = 1,807,355.90

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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.