Finding the Third Proportional to 919 and 1,227
Calculator
Solution
The third proportional to 919 and 1,227 is: 1,638.23
Step by Step Solution
- Step 1: Write the proportion equation
919 : 1,227 = 1,227 : x - Step 2: Convert to fraction form
919/1,227 = 1,227/x - Step 3: Cross multiply
919x = 1,227 × 1,227 - Step 4: Simplify right side
919x = 1,505,529 - Step 5: Solve for x
x = 1,505,529/919 - Step 6: Final answer
x = 1,638.23
Related Problems
Find third proportional to 459.50 and 613.50
Half scale
Find third proportional to 1,838 and 2,454
Double scale
Find third proportional to 921 and 1,230
Similar ratio
Find third proportional to 1,378.50 and 1,840.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.