Finding the Third Proportional to 999 and 1,122
Calculator
Solution
The third proportional to 999 and 1,122 is: 1,260.14
Step by Step Solution
- Step 1: Write the proportion equation
999 : 1,122 = 1,122 : x - Step 2: Convert to fraction form
999/1,122 = 1,122/x - Step 3: Cross multiply
999x = 1,122 × 1,122 - Step 4: Simplify right side
999x = 1,258,884 - Step 5: Solve for x
x = 1,258,884/999 - Step 6: Final answer
x = 1,260.14
Related Problems
Find third proportional to 499.50 and 561
Half scale
Find third proportional to 1,998 and 2,244
Double scale
Find third proportional to 1,001 and 1,124
Similar ratio
Find third proportional to 1,498.50 and 1,683
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.