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Finding the Third Proportional to 395,515 and 819,068

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Solution

The third proportional to 395,515 and 819,068 is: 1,696,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,515 : 819,068 = 819,068 : x
  2. Step 2: Convert to fraction form
    395,515/819,068 = 819,068/x
  3. Step 3: Cross multiply
    395,515x = 819,068 × 819,068
  4. Step 4: Simplify right side
    395,515x = 670,872,388,624
  5. Step 5: Solve for x
    x = 670,872,388,624/395,515
  6. Step 6: Final answer
    x = 1,696,199.61

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.