Finding the Fourth Proportional to 665,716.62, 998,158.87 and 281,267.84
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Solution
The fourth proportional to 665,716.62, 998,158.87 and 281,267.84 is: 421,725.98
Step by Step Solution
- Step 1: Write the proportion equation
665,716.62 : 998,158.87 = 281,267.84 : x - Step 2: Convert to fraction form
665,716.62/998,158.87 = 281,267.84/x - Step 3: Cross multiply
665,716.62x = 998,158.87 × 281,267.84 - Step 4: Simplify right side
665,716.62x = 280,749,992,979.79 - Step 5: Solve for x
x = 280,749,992,979.79/665,716.62 - Step 6: Final answer
x = 421,725.98
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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.