Finding the Fourth Proportional to 1,120,163.28, 1,680,245.27 and 278,715.03
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Solution
The fourth proportional to 1,120,163.28, 1,680,245.27 and 278,715.03 is: 418,072.63
Step by Step Solution
- Step 1: Write the proportion equation
1,120,163.28 : 1,680,245.27 = 278,715.03 : x - Step 2: Convert to fraction form
1,120,163.28/1,680,245.27 = 278,715.03/x - Step 3: Cross multiply
1,120,163.28x = 1,680,245.27 × 278,715.03 - Step 4: Simplify right side
1,120,163.28x = 468,309,604,186.10 - Step 5: Solve for x
x = 468,309,604,186.10/1,120,163.28 - Step 6: Final answer
x = 418,072.63
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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.