Finding the Fourth Proportional to 392,529.70, 588,794.55 and 353,163.70
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Solution
The fourth proportional to 392,529.70, 588,794.55 and 353,163.70 is: 529,745.55
Step by Step Solution
- Step 1: Write the proportion equation
392,529.70 : 588,794.55 = 353,163.70 : x - Step 2: Convert to fraction form
392,529.70/588,794.55 = 353,163.70/x - Step 3: Cross multiply
392,529.70x = 588,794.55 × 353,163.70 - Step 4: Simplify right side
392,529.70x = 207,940,861,817.84 - Step 5: Solve for x
x = 207,940,861,817.84/392,529.70 - Step 6: Final answer
x = 529,745.55
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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.