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Finding the Third Proportional to 398,587.50 and 605,262.38

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Solution

The third proportional to 398,587.50 and 605,262.38 is: 919,101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,587.50 : 605,262.38 = 605,262.38 : x
  2. Step 2: Convert to fraction form
    398,587.50/605,262.38 = 605,262.38/x
  3. Step 3: Cross multiply
    398,587.50x = 605,262.38 × 605,262.38
  4. Step 4: Simplify right side
    398,587.50x = 366,342,542,590.64
  5. Step 5: Solve for x
    x = 366,342,542,590.64/398,587.50
  6. Step 6: Final answer
    x = 919,101.94

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.