Finding the Fourth Proportional to 810,251.88, 1,215,640.26 and 389,473.08
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Solution
The fourth proportional to 810,251.88, 1,215,640.26 and 389,473.08 is: 584,335.77
Step by Step Solution
- Step 1: Write the proportion equation
810,251.88 : 1,215,640.26 = 389,473.08 : x - Step 2: Convert to fraction form
810,251.88/1,215,640.26 = 389,473.08/x - Step 3: Cross multiply
810,251.88x = 1,215,640.26 × 389,473.08 - Step 4: Simplify right side
810,251.88x = 473,459,156,234.20 - Step 5: Solve for x
x = 473,459,156,234.20/810,251.88 - Step 6: Final answer
x = 584,335.77
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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.