Finding the Third Proportional to 721,381 and 1,125,741
Calculator
Solution
The third proportional to 721,381 and 1,125,741 is: 1,756,759.33
Step by Step Solution
- Step 1: Write the proportion equation
721,381 : 1,125,741 = 1,125,741 : x - Step 2: Convert to fraction form
721,381/1,125,741 = 1,125,741/x - Step 3: Cross multiply
721,381x = 1,125,741 × 1,125,741 - Step 4: Simplify right side
721,381x = 1,267,292,799,081 - Step 5: Solve for x
x = 1,267,292,799,081/721,381 - Step 6: Final answer
x = 1,756,759.33
Related Problems
Find third proportional to 360,690.50 and 562,870.50
Half scale
Find third proportional to 1,442,762 and 2,251,482
Double scale
Find third proportional to 721,383 and 1,125,744
Similar ratio
Find third proportional to 1,082,071.50 and 1,688,611.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.