Finding the Third Proportional to 379 and 620.50
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Solution
The third proportional to 379 and 620.50 is: 1,015.88
Step by Step Solution
- Step 1: Write the proportion equation
379 : 620.50 = 620.50 : x - Step 2: Convert to fraction form
379/620.50 = 620.50/x - Step 3: Cross multiply
379x = 620.50 × 620.50 - Step 4: Simplify right side
379x = 385,020.25 - Step 5: Solve for x
x = 385,020.25/379 - Step 6: Final answer
x = 1,015.88
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Why These Related Problems?
These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.