Finding the Fourth Proportional to 456,672.99, 629,792.45 and 392,121.97
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Solution
The fourth proportional to 456,672.99, 629,792.45 and 392,121.97 is: 540,770.88
Step by Step Solution
- Step 1: Write the proportion equation
456,672.99 : 629,792.45 = 392,121.97 : x - Step 2: Convert to fraction form
456,672.99/629,792.45 = 392,121.97/x - Step 3: Cross multiply
456,672.99x = 629,792.45 × 392,121.97 - Step 4: Simplify right side
456,672.99x = 246,955,456,185.13 - Step 5: Solve for x
x = 246,955,456,185.13/456,672.99 - Step 6: Final answer
x = 540,770.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.