Finding the Fourth Proportional to 471.14, 709.48 and 410.99
Calculator
Solution
The fourth proportional to 471.14, 709.48 and 410.99 is: 618.90
Step by Step Solution
- Step 1: Write the proportion equation
471.14 : 709.48 = 410.99 : x - Step 2: Convert to fraction form
471.14/709.48 = 410.99/x - Step 3: Cross multiply
471.14x = 709.48 × 410.99 - Step 4: Simplify right side
471.14x = 291,587.13 - Step 5: Solve for x
x = 291,587.13/471.14 - Step 6: Final answer
x = 618.90
Related Problems
Find fourth proportional to 235.57, 354.74 and 205.50
Half scale
Find fourth proportional to 942.28, 1,418.95 and 821.98
Double scale
Find fourth proportional to 472.14, 710.98 and 411.99
Similar ratio
Find fourth proportional to 706.71, 1,064.21 and 616.49
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.