Finding the Fourth Proportional to 2,808,718.88, 4,215,441.20 and 2,631,571.68
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Solution
The fourth proportional to 2,808,718.88, 4,215,441.20 and 2,631,571.68 is: 3,949,571.37
Step by Step Solution
- Step 1: Write the proportion equation
2,808,718.88 : 4,215,441.20 = 2,631,571.68 : x - Step 2: Convert to fraction form
2,808,718.88/4,215,441.20 = 2,631,571.68/x - Step 3: Cross multiply
2,808,718.88x = 4,215,441.20 × 2,631,571.68 - Step 4: Simplify right side
2,808,718.88x = 11,093,235,680,625.22 - Step 5: Solve for x
x = 11,093,235,680,625.22/2,808,718.88 - Step 6: Final answer
x = 3,949,571.37
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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.