Finding the Fourth Proportional to 776,457.36, 1,164,685.68 and 215,491.68
Calculator
Solution
The fourth proportional to 776,457.36, 1,164,685.68 and 215,491.68 is: 323,237.42
Step by Step Solution
- Step 1: Write the proportion equation
776,457.36 : 1,164,685.68 = 215,491.68 : x - Step 2: Convert to fraction form
776,457.36/1,164,685.68 = 215,491.68/x - Step 3: Cross multiply
776,457.36x = 1,164,685.68 × 215,491.68 - Step 4: Simplify right side
776,457.36x = 250,980,073,855.14 - Step 5: Solve for x
x = 250,980,073,855.14/776,457.36 - Step 6: Final answer
x = 323,237.42
Related Problems
Find fourth proportional to 388,228.68, 582,342.84 and 107,745.84
Half scale
Find fourth proportional to 1,552,914.72, 2,329,371.36 and 430,983.36
Double scale
Find fourth proportional to 776,458.36, 1,164,687.18 and 215,492.68
Similar ratio
Find fourth proportional to 1,164,686.04, 1,747,028.52 and 323,237.52
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.