Finding the Fourth Proportional to 391,794.12, 587,691.18 and 111,274.92
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Solution
The fourth proportional to 391,794.12, 587,691.18 and 111,274.92 is: 166,912.38
Step by Step Solution
- Step 1: Write the proportion equation
391,794.12 : 587,691.18 = 111,274.92 : x - Step 2: Convert to fraction form
391,794.12/587,691.18 = 111,274.92/x - Step 3: Cross multiply
391,794.12x = 587,691.18 × 111,274.92 - Step 4: Simplify right side
391,794.12x = 65,395,289,039.21 - Step 5: Solve for x
x = 65,395,289,039.21/391,794.12 - Step 6: Final answer
x = 166,912.38
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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.