Finding the Fourth Proportional to 490,139.92, 734,687.16 and 279,323.92
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Solution
The fourth proportional to 490,139.92, 734,687.16 and 279,323.92 is: 418,687.99
Step by Step Solution
- Step 1: Write the proportion equation
490,139.92 : 734,687.16 = 279,323.92 : x - Step 2: Convert to fraction form
490,139.92/734,687.16 = 279,323.92/x - Step 3: Cross multiply
490,139.92x = 734,687.16 × 279,323.92 - Step 4: Simplify right side
490,139.92x = 205,215,697,504.87 - Step 5: Solve for x
x = 205,215,697,504.87/490,139.92 - Step 6: Final answer
x = 418,687.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.