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Finding the Third Proportional to 281,736 and 618,768

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Solution

The third proportional to 281,736 and 618,768 is: 1,358,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,736 : 618,768 = 618,768 : x
  2. Step 2: Convert to fraction form
    281,736/618,768 = 618,768/x
  3. Step 3: Cross multiply
    281,736x = 618,768 × 618,768
  4. Step 4: Simplify right side
    281,736x = 382,873,837,824
  5. Step 5: Solve for x
    x = 382,873,837,824/281,736
  6. Step 6: Final answer
    x = 1,358,980.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.