Finding the Fourth Proportional to 470,975.05, 649,717.05 and 279,853.12
Calculator
Solution
The fourth proportional to 470,975.05, 649,717.05 and 279,853.12 is: 386,061.52
Step by Step Solution
- Step 1: Write the proportion equation
470,975.05 : 649,717.05 = 279,853.12 : x - Step 2: Convert to fraction form
470,975.05/649,717.05 = 279,853.12/x - Step 3: Cross multiply
470,975.05x = 649,717.05 × 279,853.12 - Step 4: Simplify right side
470,975.05x = 181,825,343,559.70 - Step 5: Solve for x
x = 181,825,343,559.70/470,975.05 - Step 6: Final answer
x = 386,061.52
Related Problems
Find fourth proportional to 235,487.53, 324,858.53 and 139,926.56
Half scale
Find fourth proportional to 941,950.10, 1,299,434.10 and 559,706.24
Double scale
Find fourth proportional to 470,976.05, 649,718.43 and 279,854.12
Similar ratio
Find fourth proportional to 706,462.58, 974,575.58 and 419,779.68
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.