Finding the Fourth Proportional to 388,787.99, 582,471.41 and 281,907.14
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Solution
The fourth proportional to 388,787.99, 582,471.41 and 281,907.14 is: 422,345.47
Step by Step Solution
- Step 1: Write the proportion equation
388,787.99 : 582,471.41 = 281,907.14 : x - Step 2: Convert to fraction form
388,787.99/582,471.41 = 281,907.14/x - Step 3: Cross multiply
388,787.99x = 582,471.41 × 281,907.14 - Step 4: Simplify right side
388,787.99x = 164,202,845,002.98 - Step 5: Solve for x
x = 164,202,845,002.98/388,787.99 - Step 6: Final answer
x = 422,345.47
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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.