Finding the Fourth Proportional to 2,122,950.88, 2,929,643.12 and 1,205,172
Calculator
Solution
The fourth proportional to 2,122,950.88, 2,929,643.12 and 1,205,172 is: 1,663,120.84
Step by Step Solution
- Step 1: Write the proportion equation
2,122,950.88 : 2,929,643.12 = 1,205,172 : x - Step 2: Convert to fraction form
2,122,950.88/2,929,643.12 = 1,205,172/x - Step 3: Cross multiply
2,122,950.88x = 2,929,643.12 × 1,205,172 - Step 4: Simplify right side
2,122,950.88x = 3,530,723,858,216.64 - Step 5: Solve for x
x = 3,530,723,858,216.64/2,122,950.88 - Step 6: Final answer
x = 1,663,120.84
Related Problems
Find fourth proportional to 1,061,475.44, 1,464,821.56 and 602,586
Half scale
Find fourth proportional to 4,245,901.76, 5,859,286.24 and 2,410,344
Double scale
Find fourth proportional to 2,122,951.88, 2,929,644.50 and 1,205,173
Similar ratio
Find fourth proportional to 3,184,426.32, 4,394,464.68 and 1,807,758
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.