Finding the Fourth Proportional to 460,614.39, 690,855.97 and 145,063.09
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Solution
The fourth proportional to 460,614.39, 690,855.97 and 145,063.09 is: 217,573.97
Step by Step Solution
- Step 1: Write the proportion equation
460,614.39 : 690,855.97 = 145,063.09 : x - Step 2: Convert to fraction form
460,614.39/690,855.97 = 145,063.09/x - Step 3: Cross multiply
460,614.39x = 690,855.97 × 145,063.09 - Step 4: Simplify right side
460,614.39x = 100,217,701,753.15 - Step 5: Solve for x
x = 100,217,701,753.15/460,614.39 - Step 6: Final answer
x = 217,573.97
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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.