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Finding the Third Proportional to 550,255.50 and 820,302.75

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Solution

The third proportional to 550,255.50 and 820,302.75 is: 1,222,880.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,255.50 : 820,302.75 = 820,302.75 : x
  2. Step 2: Convert to fraction form
    550,255.50/820,302.75 = 820,302.75/x
  3. Step 3: Cross multiply
    550,255.50x = 820,302.75 × 820,302.75
  4. Step 4: Simplify right side
    550,255.50x = 672,896,601,657.56
  5. Step 5: Solve for x
    x = 672,896,601,657.56/550,255.50
  6. Step 6: Final answer
    x = 1,222,880.28

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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.