Finding the Fourth Proportional to 439,629.80, 659,444.70 and 413,385.80
Calculator
Solution
The fourth proportional to 439,629.80, 659,444.70 and 413,385.80 is: 620,078.70
Step by Step Solution
- Step 1: Write the proportion equation
439,629.80 : 659,444.70 = 413,385.80 : x - Step 2: Convert to fraction form
439,629.80/659,444.70 = 413,385.80/x - Step 3: Cross multiply
439,629.80x = 659,444.70 × 413,385.80 - Step 4: Simplify right side
439,629.80x = 272,605,074,865.26 - Step 5: Solve for x
x = 272,605,074,865.26/439,629.80 - Step 6: Final answer
x = 620,078.70
Related Problems
Find fourth proportional to 219,814.90, 329,722.35 and 206,692.90
Half scale
Find fourth proportional to 879,259.60, 1,318,889.40 and 826,771.60
Double scale
Find fourth proportional to 439,630.80, 659,446.20 and 413,386.80
Similar ratio
Find fourth proportional to 659,444.70, 989,167.05 and 620,078.70
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.