Finding the Fourth Proportional to 805,581.62, 1,208,114.09 and 265,716.72
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Solution
The fourth proportional to 805,581.62, 1,208,114.09 and 265,716.72 is: 398,489.87
Step by Step Solution
- Step 1: Write the proportion equation
805,581.62 : 1,208,114.09 = 265,716.72 : x - Step 2: Convert to fraction form
805,581.62/1,208,114.09 = 265,716.72/x - Step 3: Cross multiply
805,581.62x = 1,208,114.09 × 265,716.72 - Step 4: Simplify right side
805,581.62x = 321,016,113,048.44 - Step 5: Solve for x
x = 321,016,113,048.44/805,581.62 - Step 6: Final answer
x = 398,489.87
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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.