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Finding the Third Proportional to 621,226 and 1,330,988

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Solution

The third proportional to 621,226 and 1,330,988 is: 2,851,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,226 : 1,330,988 = 1,330,988 : x
  2. Step 2: Convert to fraction form
    621,226/1,330,988 = 1,330,988/x
  3. Step 3: Cross multiply
    621,226x = 1,330,988 × 1,330,988
  4. Step 4: Simplify right side
    621,226x = 1,771,529,056,144
  5. Step 5: Solve for x
    x = 1,771,529,056,144/621,226
  6. Step 6: Final answer
    x = 2,851,665.99

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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.