Finding the Fourth Proportional to 442,917.80, 664,376.70 and 324,819.80
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Solution
The fourth proportional to 442,917.80, 664,376.70 and 324,819.80 is: 487,229.70
Step by Step Solution
- Step 1: Write the proportion equation
442,917.80 : 664,376.70 = 324,819.80 : x - Step 2: Convert to fraction form
442,917.80/664,376.70 = 324,819.80/x - Step 3: Cross multiply
442,917.80x = 664,376.70 × 324,819.80 - Step 4: Simplify right side
442,917.80x = 215,802,706,818.66 - Step 5: Solve for x
x = 215,802,706,818.66/442,917.80 - Step 6: Final answer
x = 487,229.70
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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.