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Finding the Third Proportional to 815,860 and 1,728,968

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Solution

The third proportional to 815,860 and 1,728,968 is: 3,664,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,860 : 1,728,968 = 1,728,968 : x
  2. Step 2: Convert to fraction form
    815,860/1,728,968 = 1,728,968/x
  3. Step 3: Cross multiply
    815,860x = 1,728,968 × 1,728,968
  4. Step 4: Simplify right side
    815,860x = 2,989,330,345,024
  5. Step 5: Solve for x
    x = 2,989,330,345,024/815,860
  6. Step 6: Final answer
    x = 3,664,023.66

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.