Finding the Fourth Proportional to 513,163.40, 768,578.70 and 263,553.80
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Solution
The fourth proportional to 513,163.40, 768,578.70 and 263,553.80 is: 394,731.65
Step by Step Solution
- Step 1: Write the proportion equation
513,163.40 : 768,578.70 = 263,553.80 : x - Step 2: Convert to fraction form
513,163.40/768,578.70 = 263,553.80/x - Step 3: Cross multiply
513,163.40x = 768,578.70 × 263,553.80 - Step 4: Simplify right side
513,163.40x = 202,561,836,984.06 - Step 5: Solve for x
x = 202,561,836,984.06/513,163.40 - Step 6: Final answer
x = 394,731.65
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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.