Finding the Fourth Proportional to 672,106.77, 1,008,356.99 and 198,804.74
Calculator
Solution
The fourth proportional to 672,106.77, 1,008,356.99 and 198,804.74 is: 298,265.32
Step by Step Solution
- Step 1: Write the proportion equation
672,106.77 : 1,008,356.99 = 198,804.74 : x - Step 2: Convert to fraction form
672,106.77/1,008,356.99 = 198,804.74/x - Step 3: Cross multiply
672,106.77x = 1,008,356.99 × 198,804.74 - Step 4: Simplify right side
672,106.77x = 200,466,143,188.32 - Step 5: Solve for x
x = 200,466,143,188.32/672,106.77 - Step 6: Final answer
x = 298,265.32
Related Problems
Find fourth proportional to 336,053.39, 504,178.49 and 99,402.37
Half scale
Find fourth proportional to 1,344,213.54, 2,016,713.97 and 397,609.47
Double scale
Find fourth proportional to 672,107.77, 1,008,358.49 and 198,805.74
Similar ratio
Find fourth proportional to 1,008,160.16, 1,512,535.48 and 298,207.10
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.