Finding the Fourth Proportional to 395,715.24, 593,310.42 and 129,382.44
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Solution
The fourth proportional to 395,715.24, 593,310.42 and 129,382.44 is: 193,987.85
Step by Step Solution
- Step 1: Write the proportion equation
395,715.24 : 593,310.42 = 129,382.44 : x - Step 2: Convert to fraction form
395,715.24/593,310.42 = 129,382.44/x - Step 3: Cross multiply
395,715.24x = 593,310.42 × 129,382.44 - Step 4: Simplify right side
395,715.24x = 76,763,949,817.02 - Step 5: Solve for x
x = 76,763,949,817.02/395,715.24 - Step 6: Final answer
x = 193,987.85
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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.