Finding the Fourth Proportional to 488,965.08, 674,774.26 and 285,157.32
Calculator
Solution
The fourth proportional to 488,965.08, 674,774.26 and 285,157.32 is: 393,518.53
Step by Step Solution
- Step 1: Write the proportion equation
488,965.08 : 674,774.26 = 285,157.32 : x - Step 2: Convert to fraction form
488,965.08/674,774.26 = 285,157.32/x - Step 3: Cross multiply
488,965.08x = 674,774.26 × 285,157.32 - Step 4: Simplify right side
488,965.08x = 192,416,819,586.58 - Step 5: Solve for x
x = 192,416,819,586.58/488,965.08 - Step 6: Final answer
x = 393,518.53
Related Problems
Find fourth proportional to 244,482.54, 337,387.13 and 142,578.66
Half scale
Find fourth proportional to 977,930.16, 1,349,548.52 and 570,314.64
Double scale
Find fourth proportional to 488,966.08, 674,775.64 and 285,158.32
Similar ratio
Find fourth proportional to 733,447.62, 1,012,161.39 and 427,735.98
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.