Finding the Fourth Proportional to 419,748.60, 579,236.18 and 228,757.88
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Solution
The fourth proportional to 419,748.60, 579,236.18 and 228,757.88 is: 315,676.67
Step by Step Solution
- Step 1: Write the proportion equation
419,748.60 : 579,236.18 = 228,757.88 : x - Step 2: Convert to fraction form
419,748.60/579,236.18 = 228,757.88/x - Step 3: Cross multiply
419,748.60x = 579,236.18 × 228,757.88 - Step 4: Simplify right side
419,748.60x = 132,504,840,556.10 - Step 5: Solve for x
x = 132,504,840,556.10/419,748.60 - Step 6: Final answer
x = 315,676.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.