Finding the Fourth Proportional to 603,640.80, 905,570.55 and 303,365.70
Calculator
Solution
The fourth proportional to 603,640.80, 905,570.55 and 303,365.70 is: 455,103.50
Step by Step Solution
- Step 1: Write the proportion equation
603,640.80 : 905,570.55 = 303,365.70 : x - Step 2: Convert to fraction form
603,640.80/905,570.55 = 303,365.70/x - Step 3: Cross multiply
603,640.80x = 905,570.55 × 303,365.70 - Step 4: Simplify right side
603,640.80x = 274,719,043,800.14 - Step 5: Solve for x
x = 274,719,043,800.14/603,640.80 - Step 6: Final answer
x = 455,103.50
Related Problems
Find fourth proportional to 301,820.40, 452,785.28 and 151,682.85
Half scale
Find fourth proportional to 1,207,281.60, 1,811,141.10 and 606,731.40
Double scale
Find fourth proportional to 603,641.80, 905,572.05 and 303,366.70
Similar ratio
Find fourth proportional to 905,461.20, 1,358,355.83 and 455,048.55
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.