Finding the Fourth Proportional to 857,604.12, 1,286,524.97 and 289,147.94
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Solution
The fourth proportional to 857,604.12, 1,286,524.97 and 289,147.94 is: 433,761.95
Step by Step Solution
- Step 1: Write the proportion equation
857,604.12 : 1,286,524.97 = 289,147.94 : x - Step 2: Convert to fraction form
857,604.12/1,286,524.97 = 289,147.94/x - Step 3: Cross multiply
857,604.12x = 1,286,524.97 × 289,147.94 - Step 4: Simplify right side
857,604.12x = 371,996,036,955.70 - Step 5: Solve for x
x = 371,996,036,955.70/857,604.12 - Step 6: Final answer
x = 433,761.95
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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.