Finding the Fourth Proportional to 682,399.74, 1,023,730.81 and 261,642.80
Calculator
Solution
The fourth proportional to 682,399.74, 1,023,730.81 and 261,642.80 is: 392,514.50
Step by Step Solution
- Step 1: Write the proportion equation
682,399.74 : 1,023,730.81 = 261,642.80 : x - Step 2: Convert to fraction form
682,399.74/1,023,730.81 = 261,642.80/x - Step 3: Cross multiply
682,399.74x = 1,023,730.81 × 261,642.80 - Step 4: Simplify right side
682,399.74x = 267,851,795,574.67 - Step 5: Solve for x
x = 267,851,795,574.67/682,399.74 - Step 6: Final answer
x = 392,514.50
Related Problems
Find fourth proportional to 341,199.87, 511,865.41 and 130,821.40
Half scale
Find fourth proportional to 1,364,799.48, 2,047,461.62 and 523,285.60
Double scale
Find fourth proportional to 682,400.74, 1,023,732.31 and 261,643.80
Similar ratio
Find fourth proportional to 1,023,599.61, 1,535,596.22 and 392,464.20
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.