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Finding the Third Proportional to 807,628 and 1,245,138

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Solution

The third proportional to 807,628 and 1,245,138 is: 1,919,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,628 : 1,245,138 = 1,245,138 : x
  2. Step 2: Convert to fraction form
    807,628/1,245,138 = 1,245,138/x
  3. Step 3: Cross multiply
    807,628x = 1,245,138 × 1,245,138
  4. Step 4: Simplify right side
    807,628x = 1,550,368,639,044
  5. Step 5: Solve for x
    x = 1,550,368,639,044/807,628
  6. Step 6: Final answer
    x = 1,919,656.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.