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Finding the Third Proportional to 389,937 and 837,906

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Solution

The third proportional to 389,937 and 837,906 is: 1,800,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,937 : 837,906 = 837,906 : x
  2. Step 2: Convert to fraction form
    389,937/837,906 = 837,906/x
  3. Step 3: Cross multiply
    389,937x = 837,906 × 837,906
  4. Step 4: Simplify right side
    389,937x = 702,086,464,836
  5. Step 5: Solve for x
    x = 702,086,464,836/389,937
  6. Step 6: Final answer
    x = 1,800,512.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.