Finding the Fourth Proportional to 491,034.81, 677,621.36 and 276,174.82
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Solution
The fourth proportional to 491,034.81, 677,621.36 and 276,174.82 is: 381,117.49
Step by Step Solution
- Step 1: Write the proportion equation
491,034.81 : 677,621.36 = 276,174.82 : x - Step 2: Convert to fraction form
491,034.81/677,621.36 = 276,174.82/x - Step 3: Cross multiply
491,034.81x = 677,621.36 × 276,174.82 - Step 4: Simplify right side
491,034.81x = 187,141,956,122.54 - Step 5: Solve for x
x = 187,141,956,122.54/491,034.81 - Step 6: Final answer
x = 381,117.49
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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.