Finding the Fourth Proportional to 641,894.81, 962,936.10 and 192,651.21
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Solution
The fourth proportional to 641,894.81, 962,936.10 and 192,651.21 is: 289,004.99
Step by Step Solution
- Step 1: Write the proportion equation
641,894.81 : 962,936.10 = 192,651.21 : x - Step 2: Convert to fraction form
641,894.81/962,936.10 = 192,651.21/x - Step 3: Cross multiply
641,894.81x = 962,936.10 × 192,651.21 - Step 4: Simplify right side
641,894.81x = 185,510,804,817.68 - Step 5: Solve for x
x = 185,510,804,817.68/641,894.81 - Step 6: Final answer
x = 289,004.99
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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.