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Finding the Third Proportional to 373,972 and 815,632

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Solution

The third proportional to 373,972 and 815,632 is: 1,778,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,972 : 815,632 = 815,632 : x
  2. Step 2: Convert to fraction form
    373,972/815,632 = 815,632/x
  3. Step 3: Cross multiply
    373,972x = 815,632 × 815,632
  4. Step 4: Simplify right side
    373,972x = 665,255,559,424
  5. Step 5: Solve for x
    x = 665,255,559,424/373,972
  6. Step 6: Final answer
    x = 1,778,891.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.