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Finding the Third Proportional to 891,364.50 and 1,380,807

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Solution

The third proportional to 891,364.50 and 1,380,807 is: 2,138,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,364.50 : 1,380,807 = 1,380,807 : x
  2. Step 2: Convert to fraction form
    891,364.50/1,380,807 = 1,380,807/x
  3. Step 3: Cross multiply
    891,364.50x = 1,380,807 × 1,380,807
  4. Step 4: Simplify right side
    891,364.50x = 1,906,627,971,249
  5. Step 5: Solve for x
    x = 1,906,627,971,249/891,364.50
  6. Step 6: Final answer
    x = 2,138,999.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.