Finding the Fourth Proportional to 654,339.96, 981,087.12 and 312,643.08
Calculator
Solution
The fourth proportional to 654,339.96, 981,087.12 and 312,643.08 is: 468,762.60
Step by Step Solution
- Step 1: Write the proportion equation
654,339.96 : 981,087.12 = 312,643.08 : x - Step 2: Convert to fraction form
654,339.96/981,087.12 = 312,643.08/x - Step 3: Cross multiply
654,339.96x = 981,087.12 × 312,643.08 - Step 4: Simplify right side
654,339.96x = 306,730,098,945.13 - Step 5: Solve for x
x = 306,730,098,945.13/654,339.96 - Step 6: Final answer
x = 468,762.60
Related Problems
Find fourth proportional to 327,169.98, 490,543.56 and 156,321.54
Half scale
Find fourth proportional to 1,308,679.92, 1,962,174.24 and 625,286.16
Double scale
Find fourth proportional to 654,340.96, 981,088.62 and 312,644.08
Similar ratio
Find fourth proportional to 981,509.94, 1,471,630.68 and 468,964.62
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.