Finding the Third Proportional to 840,606 and 1,257,939
Calculator
Solution
The third proportional to 840,606 and 1,257,939 is: 1,882,463.99
Step by Step Solution
- Step 1: Write the proportion equation
840,606 : 1,257,939 = 1,257,939 : x - Step 2: Convert to fraction form
840,606/1,257,939 = 1,257,939/x - Step 3: Cross multiply
840,606x = 1,257,939 × 1,257,939 - Step 4: Simplify right side
840,606x = 1,582,410,527,721 - Step 5: Solve for x
x = 1,582,410,527,721/840,606 - Step 6: Final answer
x = 1,882,463.99
Related Problems
Find third proportional to 420,303 and 628,969.50
Half scale
Find third proportional to 1,681,212 and 2,515,878
Double scale
Find third proportional to 840,608 and 1,257,942
Similar ratio
Find third proportional to 1,260,909 and 1,886,908.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.