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Finding the Third Proportional to 820,285.50 and 1,284,190.50

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Solution

The third proportional to 820,285.50 and 1,284,190.50 is: 2,010,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,285.50 : 1,284,190.50 = 1,284,190.50 : x
  2. Step 2: Convert to fraction form
    820,285.50/1,284,190.50 = 1,284,190.50/x
  3. Step 3: Cross multiply
    820,285.50x = 1,284,190.50 × 1,284,190.50
  4. Step 4: Simplify right side
    820,285.50x = 1,649,145,240,290.25
  5. Step 5: Solve for x
    x = 1,649,145,240,290.25/820,285.50
  6. Step 6: Final answer
    x = 2,010,452.75

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.