Finding the Fourth Proportional to 739,247.87, 1,108,991.42 and 289,724.96
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Solution
The fourth proportional to 739,247.87, 1,108,991.42 and 289,724.96 is: 434,634.32
Step by Step Solution
- Step 1: Write the proportion equation
739,247.87 : 1,108,991.42 = 289,724.96 : x - Step 2: Convert to fraction form
739,247.87/1,108,991.42 = 289,724.96/x - Step 3: Cross multiply
739,247.87x = 1,108,991.42 × 289,724.96 - Step 4: Simplify right side
739,247.87x = 321,302,494,799.84 - Step 5: Solve for x
x = 321,302,494,799.84/739,247.87 - Step 6: Final answer
x = 434,634.32
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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.