Finding the Fourth Proportional to 460,615.39, 690,857.47 and 145,064.09
Calculator
Solution
The fourth proportional to 460,615.39, 690,857.47 and 145,064.09 is: 217,575.47
Step by Step Solution
- Step 1: Write the proportion equation
460,615.39 : 690,857.47 = 145,064.09 : x - Step 2: Convert to fraction form
460,615.39/690,857.47 = 145,064.09/x - Step 3: Cross multiply
460,615.39x = 690,857.47 × 145,064.09 - Step 4: Simplify right side
460,615.39x = 100,218,610,205.25 - Step 5: Solve for x
x = 100,218,610,205.25/460,615.39 - Step 6: Final answer
x = 217,575.47
Related Problems
Find fourth proportional to 230,307.70, 345,428.74 and 72,532.05
Half scale
Find fourth proportional to 921,230.78, 1,381,714.94 and 290,128.18
Double scale
Find fourth proportional to 460,616.39, 690,858.97 and 145,065.09
Similar ratio
Find fourth proportional to 690,923.09, 1,036,286.21 and 217,596.14
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.