Finding the Third Proportional to 440 and 626
Calculator
Solution
The third proportional to 440 and 626 is: 890.63
Step by Step Solution
- Step 1: Write the proportion equation
440 : 626 = 626 : x - Step 2: Convert to fraction form
440/626 = 626/x - Step 3: Cross multiply
440x = 626 × 626 - Step 4: Simplify right side
440x = 391,876 - Step 5: Solve for x
x = 391,876/440 - Step 6: Final answer
x = 890.63
Related Problems
Find third proportional to 220 and 313
Half scale
Find third proportional to 880 and 1,252
Double scale
Find third proportional to 442 and 629
Similar ratio
Find third proportional to 660 and 939
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.