Finding the Third Proportional to 321,991.75 and 699,341.75
Calculator
Solution
The third proportional to 321,991.75 and 699,341.75 is: 1,518,917.44
Step by Step Solution
- Step 1: Write the proportion equation
321,991.75 : 699,341.75 = 699,341.75 : x - Step 2: Convert to fraction form
321,991.75/699,341.75 = 699,341.75/x - Step 3: Cross multiply
321,991.75x = 699,341.75 × 699,341.75 - Step 4: Simplify right side
321,991.75x = 489,078,883,293.06 - Step 5: Solve for x
x = 489,078,883,293.06/321,991.75 - Step 6: Final answer
x = 1,518,917.44
Related Problems
Find third proportional to 160,995.88 and 349,670.88
Half scale
Find third proportional to 643,983.50 and 1,398,683.50
Double scale
Find third proportional to 321,994 and 699,346
Similar ratio
Find third proportional to 482,987.63 and 1,049,012.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.