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Finding the Third Proportional to 1,420,628 and 3,121,192

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Solution

The third proportional to 1,420,628 and 3,121,192 is: 6,857,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,628 : 3,121,192 = 3,121,192 : x
  2. Step 2: Convert to fraction form
    1,420,628/3,121,192 = 3,121,192/x
  3. Step 3: Cross multiply
    1,420,628x = 3,121,192 × 3,121,192
  4. Step 4: Simplify right side
    1,420,628x = 9,741,839,500,864
  5. Step 5: Solve for x
    x = 9,741,839,500,864/1,420,628
  6. Step 6: Final answer
    x = 6,857,417.64

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.