Finding the Fourth Proportional to 2,632,855.80, 3,949,283.70 and 638,311.80
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Solution
The fourth proportional to 2,632,855.80, 3,949,283.70 and 638,311.80 is: 957,467.70
Step by Step Solution
- Step 1: Write the proportion equation
2,632,855.80 : 3,949,283.70 = 638,311.80 : x - Step 2: Convert to fraction form
2,632,855.80/3,949,283.70 = 638,311.80/x - Step 3: Cross multiply
2,632,855.80x = 3,949,283.70 × 638,311.80 - Step 4: Simplify right side
2,632,855.80x = 2,520,874,387,257.66 - Step 5: Solve for x
x = 2,520,874,387,257.66/2,632,855.80 - Step 6: Final answer
x = 957,467.70
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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.