Finding the Fourth Proportional to 2,811,715.76, 3,880,186.19 and 1,522,556.21
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Solution
The fourth proportional to 2,811,715.76, 3,880,186.19 and 1,522,556.21 is: 2,101,137.55
Step by Step Solution
- Step 1: Write the proportion equation
2,811,715.76 : 3,880,186.19 = 1,522,556.21 : x - Step 2: Convert to fraction form
2,811,715.76/3,880,186.19 = 1,522,556.21/x - Step 3: Cross multiply
2,811,715.76x = 3,880,186.19 × 1,522,556.21 - Step 4: Simplify right side
2,811,715.76x = 5,907,801,552,527.03 - Step 5: Solve for x
x = 5,907,801,552,527.03/2,811,715.76 - Step 6: Final answer
x = 2,101,137.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.