Finding the Fourth Proportional to 459,915.77, 690,318.57 and 331,963.97
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Solution
The fourth proportional to 459,915.77, 690,318.57 and 331,963.97 is: 498,267.09
Step by Step Solution
- Step 1: Write the proportion equation
459,915.77 : 690,318.57 = 331,963.97 : x - Step 2: Convert to fraction form
459,915.77/690,318.57 = 331,963.97/x - Step 3: Cross multiply
459,915.77x = 690,318.57 × 331,963.97 - Step 4: Simplify right side
459,915.77x = 229,160,893,061.92 - Step 5: Solve for x
x = 229,160,893,061.92/459,915.77 - Step 6: Final answer
x = 498,267.09
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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.