Finding the Fourth Proportional to 857,668.57, 1,286,234.37 and 310,491.92
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Solution
The fourth proportional to 857,668.57, 1,286,234.37 and 310,491.92 is: 465,640.69
Step by Step Solution
- Step 1: Write the proportion equation
857,668.57 : 1,286,234.37 = 310,491.92 : x - Step 2: Convert to fraction form
857,668.57/1,286,234.37 = 310,491.92/x - Step 3: Cross multiply
857,668.57x = 1,286,234.37 × 310,491.92 - Step 4: Simplify right side
857,668.57x = 399,365,382,326.88 - Step 5: Solve for x
x = 399,365,382,326.88/857,668.57 - Step 6: Final answer
x = 465,640.69
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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.