Finding the Fourth Proportional to 493,236.44, 680,664.82 and 278,375.84
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Solution
The fourth proportional to 493,236.44, 680,664.82 and 278,375.84 is: 384,157.83
Step by Step Solution
- Step 1: Write the proportion equation
493,236.44 : 680,664.82 = 278,375.84 : x - Step 2: Convert to fraction form
493,236.44/680,664.82 = 278,375.84/x - Step 3: Cross multiply
493,236.44x = 680,664.82 × 278,375.84 - Step 4: Simplify right side
493,236.44x = 189,480,641,025.95 - Step 5: Solve for x
x = 189,480,641,025.95/493,236.44 - Step 6: Final answer
x = 384,157.83
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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.