Finding the Fourth Proportional to 325,823.20, 488,734.80 and 276,615.70
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Solution
The fourth proportional to 325,823.20, 488,734.80 and 276,615.70 is: 414,923.55
Step by Step Solution
- Step 1: Write the proportion equation
325,823.20 : 488,734.80 = 276,615.70 : x - Step 2: Convert to fraction form
325,823.20/488,734.80 = 276,615.70/x - Step 3: Cross multiply
325,823.20x = 488,734.80 × 276,615.70 - Step 4: Simplify right side
325,823.20x = 135,191,718,816.36 - Step 5: Solve for x
x = 135,191,718,816.36/325,823.20 - Step 6: Final answer
x = 414,923.55
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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.