Finding the Fourth Proportional to 434,163.20, 651,244.80 and 394,764.80
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Solution
The fourth proportional to 434,163.20, 651,244.80 and 394,764.80 is: 592,147.20
Step by Step Solution
- Step 1: Write the proportion equation
434,163.20 : 651,244.80 = 394,764.80 : x - Step 2: Convert to fraction form
434,163.20/651,244.80 = 394,764.80/x - Step 3: Cross multiply
434,163.20x = 651,244.80 × 394,764.80 - Step 4: Simplify right side
434,163.20x = 257,088,523,223.04 - Step 5: Solve for x
x = 257,088,523,223.04/434,163.20 - Step 6: Final answer
x = 592,147.20
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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.