Finding the Fourth Proportional to 850,861.87, 1,276,514.21 and 318,424.03
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Solution
The fourth proportional to 850,861.87, 1,276,514.21 and 318,424.03 is: 477,718.90
Step by Step Solution
- Step 1: Write the proportion equation
850,861.87 : 1,276,514.21 = 318,424.03 : x - Step 2: Convert to fraction form
850,861.87/1,276,514.21 = 318,424.03/x - Step 3: Cross multiply
850,861.87x = 1,276,514.21 × 318,424.03 - Step 4: Simplify right side
850,861.87x = 406,472,799,100.47 - Step 5: Solve for x
x = 406,472,799,100.47/850,861.87 - Step 6: Final answer
x = 477,718.90
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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.