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Finding the Third Proportional to 621,356 and 1,344,268

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Solution

The third proportional to 621,356 and 1,344,268 is: 2,908,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,356 : 1,344,268 = 1,344,268 : x
  2. Step 2: Convert to fraction form
    621,356/1,344,268 = 1,344,268/x
  3. Step 3: Cross multiply
    621,356x = 1,344,268 × 1,344,268
  4. Step 4: Simplify right side
    621,356x = 1,807,056,455,824
  5. Step 5: Solve for x
    x = 1,807,056,455,824/621,356
  6. Step 6: Final answer
    x = 2,908,246.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.