Finding the Fourth Proportional to 857,463.13, 1,286,692.93 and 384,148.49
Calculator
Solution
The fourth proportional to 857,463.13, 1,286,692.93 and 384,148.49 is: 576,445.95
Step by Step Solution
- Step 1: Write the proportion equation
857,463.13 : 1,286,692.93 = 384,148.49 : x - Step 2: Convert to fraction form
857,463.13/1,286,692.93 = 384,148.49/x - Step 3: Cross multiply
857,463.13x = 1,286,692.93 × 384,148.49 - Step 4: Simplify right side
857,463.13x = 494,281,147,449.17 - Step 5: Solve for x
x = 494,281,147,449.17/857,463.13 - Step 6: Final answer
x = 576,445.95
Related Problems
Find fourth proportional to 428,731.57, 643,346.46 and 192,074.25
Half scale
Find fourth proportional to 1,714,926.26, 2,573,385.85 and 768,296.99
Double scale
Find fourth proportional to 857,464.13, 1,286,694.43 and 384,149.49
Similar ratio
Find fourth proportional to 1,286,194.70, 1,930,039.39 and 576,222.74
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.