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Finding the Third Proportional to 887,720 and 1,256,100

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Solution

The third proportional to 887,720 and 1,256,100 is: 1,777,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,720 : 1,256,100 = 1,256,100 : x
  2. Step 2: Convert to fraction form
    887,720/1,256,100 = 1,256,100/x
  3. Step 3: Cross multiply
    887,720x = 1,256,100 × 1,256,100
  4. Step 4: Simplify right side
    887,720x = 1,577,787,210,000
  5. Step 5: Solve for x
    x = 1,577,787,210,000/887,720
  6. Step 6: Final answer
    x = 1,777,347.82

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.