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Finding the Third Proportional to 621,036 and 1,330,603

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Solution

The third proportional to 621,036 and 1,330,603 is: 2,850,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,036 : 1,330,603 = 1,330,603 : x
  2. Step 2: Convert to fraction form
    621,036/1,330,603 = 1,330,603/x
  3. Step 3: Cross multiply
    621,036x = 1,330,603 × 1,330,603
  4. Step 4: Simplify right side
    621,036x = 1,770,504,343,609
  5. Step 5: Solve for x
    x = 1,770,504,343,609/621,036
  6. Step 6: Final answer
    x = 2,850,888.42

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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.