Finding the Fourth Proportional to 1,311,979.68, 1,968,021.36 and 365,433.12
Calculator
Solution
The fourth proportional to 1,311,979.68, 1,968,021.36 and 365,433.12 is: 548,164.12
Step by Step Solution
- Step 1: Write the proportion equation
1,311,979.68 : 1,968,021.36 = 365,433.12 : x - Step 2: Convert to fraction form
1,311,979.68/1,968,021.36 = 365,433.12/x - Step 3: Cross multiply
1,311,979.68x = 1,968,021.36 × 365,433.12 - Step 4: Simplify right side
1,311,979.68x = 719,180,185,811.44 - Step 5: Solve for x
x = 719,180,185,811.44/1,311,979.68 - Step 6: Final answer
x = 548,164.12
Related Problems
Find fourth proportional to 655,989.84, 984,010.68 and 182,716.56
Half scale
Find fourth proportional to 2,623,959.36, 3,936,042.72 and 730,866.24
Double scale
Find fourth proportional to 1,311,980.68, 1,968,022.86 and 365,434.12
Similar ratio
Find fourth proportional to 1,967,969.52, 2,952,032.04 and 548,149.68
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.