Finding the Fourth Proportional to 540,821.79, 810,660.62 and 203,716.58
Calculator
Solution
The fourth proportional to 540,821.79, 810,660.62 and 203,716.58 is: 305,359.38
Step by Step Solution
- Step 1: Write the proportion equation
540,821.79 : 810,660.62 = 203,716.58 : x - Step 2: Convert to fraction form
540,821.79/810,660.62 = 203,716.58/x - Step 3: Cross multiply
540,821.79x = 810,660.62 × 203,716.58 - Step 4: Simplify right side
540,821.79x = 165,145,003,975.19 - Step 5: Solve for x
x = 165,145,003,975.19/540,821.79 - Step 6: Final answer
x = 305,359.38
Related Problems
Find fourth proportional to 270,410.90, 405,330.31 and 101,858.29
Half scale
Find fourth proportional to 1,081,643.58, 1,621,321.23 and 407,433.15
Double scale
Find fourth proportional to 540,822.79, 810,662.11 and 203,717.58
Similar ratio
Find fourth proportional to 811,232.69, 1,215,990.92 and 305,574.86
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.