Finding the Fourth Proportional to 2,990,334.60, 4,486,085.10 and 1,192,912.20
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Solution
The fourth proportional to 2,990,334.60, 4,486,085.10 and 1,192,912.20 is: 1,789,600.95
Step by Step Solution
- Step 1: Write the proportion equation
2,990,334.60 : 4,486,085.10 = 1,192,912.20 : x - Step 2: Convert to fraction form
2,990,334.60/4,486,085.10 = 1,192,912.20/x - Step 3: Cross multiply
2,990,334.60x = 4,486,085.10 × 1,192,912.20 - Step 4: Simplify right side
2,990,334.60x = 5,351,505,646,028.22 - Step 5: Solve for x
x = 5,351,505,646,028.22/2,990,334.60 - Step 6: Final answer
x = 1,789,600.95
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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.