Finding the Fourth Proportional to 448,756.12, 672,573.68 and 288,405.28
Calculator
Solution
The fourth proportional to 448,756.12, 672,573.68 and 288,405.28 is: 432,247.70
Step by Step Solution
- Step 1: Write the proportion equation
448,756.12 : 672,573.68 = 288,405.28 : x - Step 2: Convert to fraction form
448,756.12/672,573.68 = 288,405.28/x - Step 3: Cross multiply
448,756.12x = 672,573.68 × 288,405.28 - Step 4: Simplify right side
448,756.12x = 193,973,800,501.03 - Step 5: Solve for x
x = 193,973,800,501.03/448,756.12 - Step 6: Final answer
x = 432,247.70
Related Problems
Find fourth proportional to 224,378.06, 336,286.84 and 144,202.64
Half scale
Find fourth proportional to 897,512.24, 1,345,147.36 and 576,810.56
Double scale
Find fourth proportional to 448,757.12, 672,575.18 and 288,406.28
Similar ratio
Find fourth proportional to 673,134.18, 1,008,860.52 and 432,607.92
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.