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Finding the Third Proportional to 834,756 and 1,247,220

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Solution

The third proportional to 834,756 and 1,247,220 is: 1,863,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,756 : 1,247,220 = 1,247,220 : x
  2. Step 2: Convert to fraction form
    834,756/1,247,220 = 1,247,220/x
  3. Step 3: Cross multiply
    834,756x = 1,247,220 × 1,247,220
  4. Step 4: Simplify right side
    834,756x = 1,555,557,728,400
  5. Step 5: Solve for x
    x = 1,555,557,728,400/834,756
  6. Step 6: Final answer
    x = 1,863,487.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.