Finding the Fourth Proportional to 4,247,961.20, 6,361,444.20 and 2,820,287.60
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Solution
The fourth proportional to 4,247,961.20, 6,361,444.20 and 2,820,287.60 is: 4,223,461.88
Step by Step Solution
- Step 1: Write the proportion equation
4,247,961.20 : 6,361,444.20 = 2,820,287.60 : x - Step 2: Convert to fraction form
4,247,961.20/6,361,444.20 = 2,820,287.60/x - Step 3: Cross multiply
4,247,961.20x = 6,361,444.20 × 2,820,287.60 - Step 4: Simplify right side
4,247,961.20x = 17,941,102,195,351.92 - Step 5: Solve for x
x = 17,941,102,195,351.92/4,247,961.20 - Step 6: Final answer
x = 4,223,461.88
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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.