Finding the Fourth Proportional to 870,446.62, 1,201,302.66 and 488,474.92
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Solution
The fourth proportional to 870,446.62, 1,201,302.66 and 488,474.92 is: 674,143.83
Step by Step Solution
- Step 1: Write the proportion equation
870,446.62 : 1,201,302.66 = 488,474.92 : x - Step 2: Convert to fraction form
870,446.62/1,201,302.66 = 488,474.92/x - Step 3: Cross multiply
870,446.62x = 1,201,302.66 × 488,474.92 - Step 4: Simplify right side
870,446.62x = 586,806,220,739.29 - Step 5: Solve for x
x = 586,806,220,739.29/870,446.62 - Step 6: Final answer
x = 674,143.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.