Finding the Fourth Proportional to 998,359.63, 1,498,213.29 and 391,072.62
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Solution
The fourth proportional to 998,359.63, 1,498,213.29 and 391,072.62 is: 586,872.89
Step by Step Solution
- Step 1: Write the proportion equation
998,359.63 : 1,498,213.29 = 391,072.62 : x - Step 2: Convert to fraction form
998,359.63/1,498,213.29 = 391,072.62/x - Step 3: Cross multiply
998,359.63x = 1,498,213.29 × 391,072.62 - Step 4: Simplify right side
998,359.63x = 585,910,203,723.94 - Step 5: Solve for x
x = 585,910,203,723.94/998,359.63 - Step 6: Final answer
x = 586,872.89
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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.