Home / 1,538,257.50-2,388,021.75

Finding the Third Proportional to 1,538,257.50 and 2,388,021.75

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Solution

The third proportional to 1,538,257.50 and 2,388,021.75 is: 3,707,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,257.50 : 2,388,021.75 = 2,388,021.75 : x
  2. Step 2: Convert to fraction form
    1,538,257.50/2,388,021.75 = 2,388,021.75/x
  3. Step 3: Cross multiply
    1,538,257.50x = 2,388,021.75 × 2,388,021.75
  4. Step 4: Simplify right side
    1,538,257.50x = 5,702,647,878,473.06
  5. Step 5: Solve for x
    x = 5,702,647,878,473.06/1,538,257.50
  6. Step 6: Final answer
    x = 3,707,212.79

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.