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Finding the Third Proportional to 393,221.25 and 860,034.38

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Solution

The third proportional to 393,221.25 and 860,034.38 is: 1,881,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,221.25 : 860,034.38 = 860,034.38 : x
  2. Step 2: Convert to fraction form
    393,221.25/860,034.38 = 860,034.38/x
  3. Step 3: Cross multiply
    393,221.25x = 860,034.38 × 860,034.38
  4. Step 4: Simplify right side
    393,221.25x = 739,659,126,181.64
  5. Step 5: Solve for x
    x = 739,659,126,181.64/393,221.25
  6. Step 6: Final answer
    x = 1,881,025.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.