Finding the Fourth Proportional to 491,751.42, 678,546.36 and 273,958.62
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Solution
The fourth proportional to 491,751.42, 678,546.36 and 273,958.62 is: 378,023.56
Step by Step Solution
- Step 1: Write the proportion equation
491,751.42 : 678,546.36 = 273,958.62 : x - Step 2: Convert to fraction form
491,751.42/678,546.36 = 273,958.62/x - Step 3: Cross multiply
491,751.42x = 678,546.36 × 273,958.62 - Step 4: Simplify right side
491,751.42x = 185,893,624,391.62 - Step 5: Solve for x
x = 185,893,624,391.62/491,751.42 - Step 6: Final answer
x = 378,023.56
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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.