Finding the Fourth Proportional to 325,819.20, 488,728.80 and 276,611.70
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Solution
The fourth proportional to 325,819.20, 488,728.80 and 276,611.70 is: 414,917.55
Step by Step Solution
- Step 1: Write the proportion equation
325,819.20 : 488,728.80 = 276,611.70 : x - Step 2: Convert to fraction form
325,819.20/488,728.80 = 276,611.70/x - Step 3: Cross multiply
325,819.20x = 488,728.80 × 276,611.70 - Step 4: Simplify right side
325,819.20x = 135,188,104,206.96 - Step 5: Solve for x
x = 135,188,104,206.96/325,819.20 - Step 6: Final answer
x = 414,917.55
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1.5x scale
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.