Finding the Fourth Proportional to 790,361.16, 1,185,664.76 and 257,758
Calculator
Solution
The fourth proportional to 790,361.16, 1,185,664.76 and 257,758 is: 386,677.12
Step by Step Solution
- Step 1: Write the proportion equation
790,361.16 : 1,185,664.76 = 257,758 : x - Step 2: Convert to fraction form
790,361.16/1,185,664.76 = 257,758/x - Step 3: Cross multiply
790,361.16x = 1,185,664.76 × 257,758 - Step 4: Simplify right side
790,361.16x = 305,614,577,208.08 - Step 5: Solve for x
x = 305,614,577,208.08/790,361.16 - Step 6: Final answer
x = 386,677.12
Related Problems
Find fourth proportional to 395,180.58, 592,832.38 and 128,879
Half scale
Find fourth proportional to 1,580,722.32, 2,371,329.52 and 515,516
Double scale
Find fourth proportional to 790,362.16, 1,185,666.26 and 257,759
Similar ratio
Find fourth proportional to 1,185,541.74, 1,778,497.14 and 386,637
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.