Finding the Fourth Proportional to 512,163.60, 768,245.40 and 288,214.80
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Solution
The fourth proportional to 512,163.60, 768,245.40 and 288,214.80 is: 432,322.20
Step by Step Solution
- Step 1: Write the proportion equation
512,163.60 : 768,245.40 = 288,214.80 : x - Step 2: Convert to fraction form
512,163.60/768,245.40 = 288,214.80/x - Step 3: Cross multiply
512,163.60x = 768,245.40 × 288,214.80 - Step 4: Simplify right side
512,163.60x = 221,419,694,311.92 - Step 5: Solve for x
x = 221,419,694,311.92/512,163.60 - Step 6: Final answer
x = 432,322.20
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1.5x scale
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.