Finding the Third Proportional to 387,836 and 810,972
Calculator
Solution
The third proportional to 387,836 and 810,972 is: 1,695,756.93
Step by Step Solution
- Step 1: Write the proportion equation
387,836 : 810,972 = 810,972 : x - Step 2: Convert to fraction form
387,836/810,972 = 810,972/x - Step 3: Cross multiply
387,836x = 810,972 × 810,972 - Step 4: Simplify right side
387,836x = 657,675,584,784 - Step 5: Solve for x
x = 657,675,584,784/387,836 - Step 6: Final answer
x = 1,695,756.93
Related Problems
Find third proportional to 193,918 and 405,486
Half scale
Find third proportional to 775,672 and 1,621,944
Double scale
Find third proportional to 387,838 and 810,976
Similar ratio
Find third proportional to 581,754 and 1,216,458
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.