Finding the Third Proportional to 443 and 709
Calculator
Solution
The third proportional to 443 and 709 is: 1,134.72
Step by Step Solution
- Step 1: Write the proportion equation
443 : 709 = 709 : x - Step 2: Convert to fraction form
443/709 = 709/x - Step 3: Cross multiply
443x = 709 × 709 - Step 4: Simplify right side
443x = 502,681 - Step 5: Solve for x
x = 502,681/443 - Step 6: Final answer
x = 1,134.72
Related Problems
Find third proportional to 221.50 and 354.50
Half scale
Find third proportional to 886 and 1,418
Double scale
Find third proportional to 445 and 712
Similar ratio
Find third proportional to 664.50 and 1,063.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.