Finding the Fourth Proportional to 852,879.84, 1,278,849.12 and 347,311.20
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Solution
The fourth proportional to 852,879.84, 1,278,849.12 and 347,311.20 is: 520,775.15
Step by Step Solution
- Step 1: Write the proportion equation
852,879.84 : 1,278,849.12 = 347,311.20 : x - Step 2: Convert to fraction form
852,879.84/1,278,849.12 = 347,311.20/x - Step 3: Cross multiply
852,879.84x = 1,278,849.12 × 347,311.20 - Step 4: Simplify right side
852,879.84x = 444,158,622,486.14 - Step 5: Solve for x
x = 444,158,622,486.14/852,879.84 - Step 6: Final answer
x = 520,775.15
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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.