Finding the Fourth Proportional to 494,413.80, 741,620.70 and 139,423.20
Calculator
Solution
The fourth proportional to 494,413.80, 741,620.70 and 139,423.20 is: 209,134.80
Step by Step Solution
- Step 1: Write the proportion equation
494,413.80 : 741,620.70 = 139,423.20 : x - Step 2: Convert to fraction form
494,413.80/741,620.70 = 139,423.20/x - Step 3: Cross multiply
494,413.80x = 741,620.70 × 139,423.20 - Step 4: Simplify right side
494,413.80x = 103,399,131,180.24 - Step 5: Solve for x
x = 103,399,131,180.24/494,413.80 - Step 6: Final answer
x = 209,134.80
Related Problems
Find fourth proportional to 247,206.90, 370,810.35 and 69,711.60
Half scale
Find fourth proportional to 988,827.60, 1,483,241.40 and 278,846.40
Double scale
Find fourth proportional to 494,414.80, 741,622.20 and 139,424.20
Similar ratio
Find fourth proportional to 741,620.70, 1,112,431.05 and 209,134.80
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.