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Finding the Third Proportional to 397,088 and 856,384

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Solution

The third proportional to 397,088 and 856,384 is: 1,846,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,088 : 856,384 = 856,384 : x
  2. Step 2: Convert to fraction form
    397,088/856,384 = 856,384/x
  3. Step 3: Cross multiply
    397,088x = 856,384 × 856,384
  4. Step 4: Simplify right side
    397,088x = 733,393,555,456
  5. Step 5: Solve for x
    x = 733,393,555,456/397,088
  6. Step 6: Final answer
    x = 1,846,929.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.