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Finding the Third Proportional to 621,222 and 1,330,980

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Solution

The third proportional to 621,222 and 1,330,980 is: 2,851,650.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,222 : 1,330,980 = 1,330,980 : x
  2. Step 2: Convert to fraction form
    621,222/1,330,980 = 1,330,980/x
  3. Step 3: Cross multiply
    621,222x = 1,330,980 × 1,330,980
  4. Step 4: Simplify right side
    621,222x = 1,771,507,760,400
  5. Step 5: Solve for x
    x = 1,771,507,760,400/621,222
  6. Step 6: Final answer
    x = 2,851,650.07

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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.