Finding the Fourth Proportional to 985,514.70, 1,476,198.45 and 819,626.70
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Solution
The fourth proportional to 985,514.70, 1,476,198.45 and 819,626.70 is: 1,227,715.49
Step by Step Solution
- Step 1: Write the proportion equation
985,514.70 : 1,476,198.45 = 819,626.70 : x - Step 2: Convert to fraction form
985,514.70/1,476,198.45 = 819,626.70/x - Step 3: Cross multiply
985,514.70x = 1,476,198.45 × 819,626.70 - Step 4: Simplify right side
985,514.70x = 1,209,931,664,118.62 - Step 5: Solve for x
x = 1,209,931,664,118.62/985,514.70 - Step 6: Final answer
x = 1,227,715.49
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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.