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Finding the Third Proportional to 811,470 and 1,263,132

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Solution

The third proportional to 811,470 and 1,263,132 is: 1,966,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,470 : 1,263,132 = 1,263,132 : x
  2. Step 2: Convert to fraction form
    811,470/1,263,132 = 1,263,132/x
  3. Step 3: Cross multiply
    811,470x = 1,263,132 × 1,263,132
  4. Step 4: Simplify right side
    811,470x = 1,595,502,449,424
  5. Step 5: Solve for x
    x = 1,595,502,449,424/811,470
  6. Step 6: Final answer
    x = 1,966,187.84

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.