Finding the Fourth Proportional to 428,643.39, 591,561.33 and 237,693.99
Calculator
Solution
The fourth proportional to 428,643.39, 591,561.33 and 237,693.99 is: 328,036.26
Step by Step Solution
- Step 1: Write the proportion equation
428,643.39 : 591,561.33 = 237,693.99 : x - Step 2: Convert to fraction form
428,643.39/591,561.33 = 237,693.99/x - Step 3: Cross multiply
428,643.39x = 591,561.33 × 237,693.99 - Step 4: Simplify right side
428,643.39x = 140,610,572,857.41 - Step 5: Solve for x
x = 140,610,572,857.41/428,643.39 - Step 6: Final answer
x = 328,036.26
Related Problems
Find fourth proportional to 214,321.70, 295,780.67 and 118,847.00
Half scale
Find fourth proportional to 857,286.78, 1,183,122.66 and 475,387.98
Double scale
Find fourth proportional to 428,644.39, 591,562.71 and 237,694.99
Similar ratio
Find fourth proportional to 642,965.09, 887,342.00 and 356,540.99
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.