Finding the Third Proportional to 390 and 588
Calculator
Solution
The third proportional to 390 and 588 is: 886.52
Step by Step Solution
- Step 1: Write the proportion equation
390 : 588 = 588 : x - Step 2: Convert to fraction form
390/588 = 588/x - Step 3: Cross multiply
390x = 588 × 588 - Step 4: Simplify right side
390x = 345,744 - Step 5: Solve for x
x = 345,744/390 - Step 6: Final answer
x = 886.52
Related Problems
Find third proportional to 195 and 294
Half scale
Find third proportional to 780 and 1,176
Double scale
Find third proportional to 392 and 591
Similar ratio
Find third proportional to 585 and 882
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.