Finding the Fourth Proportional to 636,991.20, 879,057.63 and 365,082.84
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Solution
The fourth proportional to 636,991.20, 879,057.63 and 365,082.84 is: 503,819.92
Step by Step Solution
- Step 1: Write the proportion equation
636,991.20 : 879,057.63 = 365,082.84 : x - Step 2: Convert to fraction form
636,991.20/879,057.63 = 365,082.84/x - Step 3: Cross multiply
636,991.20x = 879,057.63 × 365,082.84 - Step 4: Simplify right side
636,991.20x = 320,928,856,084.07 - Step 5: Solve for x
x = 320,928,856,084.07/636,991.20 - Step 6: Final answer
x = 503,819.92
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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.