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Finding the Third Proportional to 621,296 and 1,358,904

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Solution

The third proportional to 621,296 and 1,358,904 is: 2,972,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,296 : 1,358,904 = 1,358,904 : x
  2. Step 2: Convert to fraction form
    621,296/1,358,904 = 1,358,904/x
  3. Step 3: Cross multiply
    621,296x = 1,358,904 × 1,358,904
  4. Step 4: Simplify right side
    621,296x = 1,846,620,081,216
  5. Step 5: Solve for x
    x = 1,846,620,081,216/621,296
  6. Step 6: Final answer
    x = 2,972,206.62

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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.