Finding the Fourth Proportional to 491,749.29, 678,634.97 and 273,957.84
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Solution
The fourth proportional to 491,749.29, 678,634.97 and 273,957.84 is: 378,073.49
Step by Step Solution
- Step 1: Write the proportion equation
491,749.29 : 678,634.97 = 273,957.84 : x - Step 2: Convert to fraction form
491,749.29/678,634.97 = 273,957.84/x - Step 3: Cross multiply
491,749.29x = 678,634.97 × 273,957.84 - Step 4: Simplify right side
491,749.29x = 185,917,372,343.71 - Step 5: Solve for x
x = 185,917,372,343.71/491,749.29 - Step 6: Final answer
x = 378,073.49
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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.