Finding the Third Proportional to 605 and 777
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Solution
The third proportional to 605 and 777 is: 997.90
Step by Step Solution
- Step 1: Write the proportion equation
605 : 777 = 777 : x - Step 2: Convert to fraction form
605/777 = 777/x - Step 3: Cross multiply
605x = 777 × 777 - Step 4: Simplify right side
605x = 603,729 - Step 5: Solve for x
x = 603,729/605 - Step 6: Final answer
x = 997.90
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Why These Related Problems?
These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.