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Finding the Third Proportional to 389,927 and 837,886

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Solution

The third proportional to 389,927 and 837,886 is: 1,800,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,927 : 837,886 = 837,886 : x
  2. Step 2: Convert to fraction form
    389,927/837,886 = 837,886/x
  3. Step 3: Cross multiply
    389,927x = 837,886 × 837,886
  4. Step 4: Simplify right side
    389,927x = 702,052,948,996
  5. Step 5: Solve for x
    x = 702,052,948,996/389,927
  6. Step 6: Final answer
    x = 1,800,472.78

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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.