Finding the Fourth Proportional to 694,163.10, 1,040,553.45 and 319,532.70
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Solution
The fourth proportional to 694,163.10, 1,040,553.45 and 319,532.70 is: 478,980.88
Step by Step Solution
- Step 1: Write the proportion equation
694,163.10 : 1,040,553.45 = 319,532.70 : x - Step 2: Convert to fraction form
694,163.10/1,040,553.45 = 319,532.70/x - Step 3: Cross multiply
694,163.10x = 1,040,553.45 × 319,532.70 - Step 4: Simplify right side
694,163.10x = 332,490,853,372.82 - Step 5: Solve for x
x = 332,490,853,372.82/694,163.10 - Step 6: Final answer
x = 478,980.88
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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.