Finding the Fourth Proportional to 2,764,880, 4,147,320 and 663,632
Calculator
Solution
The fourth proportional to 2,764,880, 4,147,320 and 663,632 is: 995,448
Step by Step Solution
- Step 1: Write the proportion equation
2,764,880 : 4,147,320 = 663,632 : x - Step 2: Convert to fraction form
2,764,880/4,147,320 = 663,632/x - Step 3: Cross multiply
2,764,880x = 4,147,320 × 663,632 - Step 4: Simplify right side
2,764,880x = 2,752,294,266,240 - Step 5: Solve for x
x = 2,752,294,266,240/2,764,880 - Step 6: Final answer
x = 995,448
Related Problems
Find fourth proportional to 1,382,440, 2,073,660 and 331,816
Half scale
Find fourth proportional to 5,529,760, 8,294,640 and 1,327,264
Double scale
Find fourth proportional to 2,764,881, 4,147,321.50 and 663,633
Similar ratio
Find fourth proportional to 4,147,320, 6,220,980 and 995,448
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.