Finding the Fourth Proportional to 393,115.88, 588,787.79 and 275,313.13
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Solution
The fourth proportional to 393,115.88, 588,787.79 and 275,313.13 is: 412,349.17
Step by Step Solution
- Step 1: Write the proportion equation
393,115.88 : 588,787.79 = 275,313.13 : x - Step 2: Convert to fraction form
393,115.88/588,787.79 = 275,313.13/x - Step 3: Cross multiply
393,115.88x = 588,787.79 × 275,313.13 - Step 4: Simplify right side
393,115.88x = 162,101,006,522.15 - Step 5: Solve for x
x = 162,101,006,522.15/393,115.88 - Step 6: Final answer
x = 412,349.17
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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.