Finding the Fourth Proportional to 494,013.58, 681,729.84 and 279,148.99
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Solution
The fourth proportional to 494,013.58, 681,729.84 and 279,148.99 is: 385,220.58
Step by Step Solution
- Step 1: Write the proportion equation
494,013.58 : 681,729.84 = 279,148.99 : x - Step 2: Convert to fraction form
494,013.58/681,729.84 = 279,148.99/x - Step 3: Cross multiply
494,013.58x = 681,729.84 × 279,148.99 - Step 4: Simplify right side
494,013.58x = 190,304,196,288.86 - Step 5: Solve for x
x = 190,304,196,288.86/494,013.58 - Step 6: Final answer
x = 385,220.58
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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.