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Finding the Third Proportional to 395,491 and 847,028

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Solution

The third proportional to 395,491 and 847,028 is: 1,814,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,491 : 847,028 = 847,028 : x
  2. Step 2: Convert to fraction form
    395,491/847,028 = 847,028/x
  3. Step 3: Cross multiply
    395,491x = 847,028 × 847,028
  4. Step 4: Simplify right side
    395,491x = 717,456,432,784
  5. Step 5: Solve for x
    x = 717,456,432,784/395,491
  6. Step 6: Final answer
    x = 1,814,090.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.