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Finding the Third Proportional to 372,980.25 and 815,784.75

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Solution

The third proportional to 372,980.25 and 815,784.75 is: 1,784,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,980.25 : 815,784.75 = 815,784.75 : x
  2. Step 2: Convert to fraction form
    372,980.25/815,784.75 = 815,784.75/x
  3. Step 3: Cross multiply
    372,980.25x = 815,784.75 × 815,784.75
  4. Step 4: Simplify right side
    372,980.25x = 665,504,758,332.56
  5. Step 5: Solve for x
    x = 665,504,758,332.56/372,980.25
  6. Step 6: Final answer
    x = 1,784,289.54

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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.