Finding the Fourth Proportional to 617,813.70, 926,720.55 and 218,451.30
Calculator
Solution
The fourth proportional to 617,813.70, 926,720.55 and 218,451.30 is: 327,676.95
Step by Step Solution
- Step 1: Write the proportion equation
617,813.70 : 926,720.55 = 218,451.30 : x - Step 2: Convert to fraction form
617,813.70/926,720.55 = 218,451.30/x - Step 3: Cross multiply
617,813.70x = 926,720.55 × 218,451.30 - Step 4: Simplify right side
617,813.70x = 202,443,308,884.22 - Step 5: Solve for x
x = 202,443,308,884.22/617,813.70 - Step 6: Final answer
x = 327,676.95
Related Problems
Find fourth proportional to 308,906.85, 463,360.28 and 109,225.65
Half scale
Find fourth proportional to 1,235,627.40, 1,853,441.10 and 436,902.60
Double scale
Find fourth proportional to 617,814.70, 926,722.05 and 218,452.30
Similar ratio
Find fourth proportional to 926,720.55, 1,390,080.83 and 327,676.95
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.