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Finding the Third Proportional to 621,219 and 1,330,974

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Solution

The third proportional to 621,219 and 1,330,974 is: 2,851,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,219 : 1,330,974 = 1,330,974 : x
  2. Step 2: Convert to fraction form
    621,219/1,330,974 = 1,330,974/x
  3. Step 3: Cross multiply
    621,219x = 1,330,974 × 1,330,974
  4. Step 4: Simplify right side
    621,219x = 1,771,491,788,676
  5. Step 5: Solve for x
    x = 1,771,491,788,676/621,219
  6. Step 6: Final answer
    x = 2,851,638.13

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.