Finding the Fourth Proportional to 480,485.79, 721,163.43 and 256,035.87
Calculator
Solution
The fourth proportional to 480,485.79, 721,163.43 and 256,035.87 is: 384,285.47
Step by Step Solution
- Step 1: Write the proportion equation
480,485.79 : 721,163.43 = 256,035.87 : x - Step 2: Convert to fraction form
480,485.79/721,163.43 = 256,035.87/x - Step 3: Cross multiply
480,485.79x = 721,163.43 × 256,035.87 - Step 4: Simplify right side
480,485.79x = 184,643,706,212.23 - Step 5: Solve for x
x = 184,643,706,212.23/480,485.79 - Step 6: Final answer
x = 384,285.47
Related Problems
Find fourth proportional to 240,242.90, 360,581.72 and 128,017.94
Half scale
Find fourth proportional to 960,971.58, 1,442,326.86 and 512,071.74
Double scale
Find fourth proportional to 480,486.79, 721,164.93 and 256,036.87
Similar ratio
Find fourth proportional to 720,728.69, 1,081,745.15 and 384,053.81
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.