Finding the Fourth Proportional to 685,491.14, 1,028,446.91 and 306,730.68
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Solution
The fourth proportional to 685,491.14, 1,028,446.91 and 306,730.68 is: 460,190.08
Step by Step Solution
- Step 1: Write the proportion equation
685,491.14 : 1,028,446.91 = 306,730.68 : x - Step 2: Convert to fraction form
685,491.14/1,028,446.91 = 306,730.68/x - Step 3: Cross multiply
685,491.14x = 1,028,446.91 × 306,730.68 - Step 4: Simplify right side
685,491.14x = 315,456,218,514.55 - Step 5: Solve for x
x = 315,456,218,514.55/685,491.14 - Step 6: Final answer
x = 460,190.08
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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.