Finding the Fourth Proportional to 893.99, 1,232.49 and 628.07
Calculator
Solution
The fourth proportional to 893.99, 1,232.49 and 628.07 is: 865.88
Step by Step Solution
- Step 1: Write the proportion equation
893.99 : 1,232.49 = 628.07 : x - Step 2: Convert to fraction form
893.99/1,232.49 = 628.07/x - Step 3: Cross multiply
893.99x = 1,232.49 × 628.07 - Step 4: Simplify right side
893.99x = 774,089.99 - Step 5: Solve for x
x = 774,089.99/893.99 - Step 6: Final answer
x = 865.88
Related Problems
Find fourth proportional to 447.00, 616.25 and 314.04
Half scale
Find fourth proportional to 1,787.98, 2,464.98 and 1,256.14
Double scale
Find fourth proportional to 894.99, 1,233.87 and 629.07
Similar ratio
Find fourth proportional to 1,340.99, 1,848.74 and 942.11
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.