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Finding the Third Proportional to 654,888 and 1,431,519

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Solution

The third proportional to 654,888 and 1,431,519 is: 3,129,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,888 : 1,431,519 = 1,431,519 : x
  2. Step 2: Convert to fraction form
    654,888/1,431,519 = 1,431,519/x
  3. Step 3: Cross multiply
    654,888x = 1,431,519 × 1,431,519
  4. Step 4: Simplify right side
    654,888x = 2,049,246,647,361
  5. Step 5: Solve for x
    x = 2,049,246,647,361/654,888
  6. Step 6: Final answer
    x = 3,129,155.90

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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.