Finding the Third Proportional to 381,985 and 809,504
Calculator
Solution
The third proportional to 381,985 and 809,504 is: 1,715,503.82
Step by Step Solution
- Step 1: Write the proportion equation
381,985 : 809,504 = 809,504 : x - Step 2: Convert to fraction form
381,985/809,504 = 809,504/x - Step 3: Cross multiply
381,985x = 809,504 × 809,504 - Step 4: Simplify right side
381,985x = 655,296,726,016 - Step 5: Solve for x
x = 655,296,726,016/381,985 - Step 6: Final answer
x = 1,715,503.82
Related Problems
Find third proportional to 190,992.50 and 404,752
Half scale
Find third proportional to 763,970 and 1,619,008
Double scale
Find third proportional to 381,987 and 809,508
Similar ratio
Find third proportional to 572,977.50 and 1,214,256
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.