Finding the Fourth Proportional to 641,704.80, 962,775.96 and 192,436.68
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Solution
The fourth proportional to 641,704.80, 962,775.96 and 192,436.68 is: 288,720.62
Step by Step Solution
- Step 1: Write the proportion equation
641,704.80 : 962,775.96 = 192,436.68 : x - Step 2: Convert to fraction form
641,704.80/962,775.96 = 192,436.68/x - Step 3: Cross multiply
641,704.80x = 962,775.96 × 192,436.68 - Step 4: Simplify right side
641,704.80x = 185,273,409,326.21 - Step 5: Solve for x
x = 185,273,409,326.21/641,704.80 - Step 6: Final answer
x = 288,720.62
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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.