Finding the Fourth Proportional to 449,628.22, 674,487.17 and 129,787.84
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Solution
The fourth proportional to 449,628.22, 674,487.17 and 129,787.84 is: 194,694.70
Step by Step Solution
- Step 1: Write the proportion equation
449,628.22 : 674,487.17 = 129,787.84 : x - Step 2: Convert to fraction form
449,628.22/674,487.17 = 129,787.84/x - Step 3: Cross multiply
449,628.22x = 674,487.17 × 129,787.84 - Step 4: Simplify right side
449,628.22x = 87,540,232,902.01 - Step 5: Solve for x
x = 87,540,232,902.01/449,628.22 - Step 6: Final answer
x = 194,694.70
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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.