Finding the Third Proportional to 403 and 692
Calculator
Solution
The third proportional to 403 and 692 is: 1,188.25
Step by Step Solution
- Step 1: Write the proportion equation
403 : 692 = 692 : x - Step 2: Convert to fraction form
403/692 = 692/x - Step 3: Cross multiply
403x = 692 × 692 - Step 4: Simplify right side
403x = 478,864 - Step 5: Solve for x
x = 478,864/403 - Step 6: Final answer
x = 1,188.25
Related Problems
Find third proportional to 201.50 and 346
Half scale
Find third proportional to 806 and 1,384
Double scale
Find third proportional to 405 and 695
Similar ratio
Find third proportional to 604.50 and 1,038
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.