Finding the Fourth Proportional to 395,631.26, 593,519.79 and 129,405.94
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Solution
The fourth proportional to 395,631.26, 593,519.79 and 129,405.94 is: 194,132.75
Step by Step Solution
- Step 1: Write the proportion equation
395,631.26 : 593,519.79 = 129,405.94 : x - Step 2: Convert to fraction form
395,631.26/593,519.79 = 129,405.94/x - Step 3: Cross multiply
395,631.26x = 593,519.79 × 129,405.94 - Step 4: Simplify right side
395,631.26x = 76,804,986,333.55 - Step 5: Solve for x
x = 76,804,986,333.55/395,631.26 - Step 6: Final answer
x = 194,132.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.