Finding the Fourth Proportional to 491,645.07, 678,534.89 and 276,826.99
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Solution
The fourth proportional to 491,645.07, 678,534.89 and 276,826.99 is: 382,057.68
Step by Step Solution
- Step 1: Write the proportion equation
491,645.07 : 678,534.89 = 276,826.99 : x - Step 2: Convert to fraction form
491,645.07/678,534.89 = 276,826.99/x - Step 3: Cross multiply
491,645.07x = 678,534.89 × 276,826.99 - Step 4: Simplify right side
491,645.07x = 187,836,772,748.92 - Step 5: Solve for x
x = 187,836,772,748.92/491,645.07 - Step 6: Final answer
x = 382,057.68
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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.