Finding the Third Proportional to 585 and 978
Calculator
Solution
The third proportional to 585 and 978 is: 1,635.02
Step by Step Solution
- Step 1: Write the proportion equation
585 : 978 = 978 : x - Step 2: Convert to fraction form
585/978 = 978/x - Step 3: Cross multiply
585x = 978 × 978 - Step 4: Simplify right side
585x = 956,484 - Step 5: Solve for x
x = 956,484/585 - Step 6: Final answer
x = 1,635.02
Related Problems
Find third proportional to 292.50 and 489
Half scale
Find third proportional to 1,170 and 1,956
Double scale
Find third proportional to 587 and 981
Similar ratio
Find third proportional to 877.50 and 1,467
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.