Finding the Fourth Proportional to 494,402.55, 682,288.95 and 279,574.75
Calculator
Solution
The fourth proportional to 494,402.55, 682,288.95 and 279,574.75 is: 385,820.75
Step by Step Solution
- Step 1: Write the proportion equation
494,402.55 : 682,288.95 = 279,574.75 : x - Step 2: Convert to fraction form
494,402.55/682,288.95 = 279,574.75/x - Step 3: Cross multiply
494,402.55x = 682,288.95 × 279,574.75 - Step 4: Simplify right side
494,402.55x = 190,750,762,624.01 - Step 5: Solve for x
x = 190,750,762,624.01/494,402.55 - Step 6: Final answer
x = 385,820.75
Related Problems
Find fourth proportional to 247,201.28, 341,144.48 and 139,787.38
Half scale
Find fourth proportional to 988,805.10, 1,364,577.90 and 559,149.50
Double scale
Find fourth proportional to 494,403.55, 682,290.33 and 279,575.75
Similar ratio
Find fourth proportional to 741,603.83, 1,023,433.43 and 419,362.13
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.