Finding the Fourth Proportional to 3,479,288.20, 5,218,932.30 and 2,203,829.80
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Solution
The fourth proportional to 3,479,288.20, 5,218,932.30 and 2,203,829.80 is: 3,305,744.70
Step by Step Solution
- Step 1: Write the proportion equation
3,479,288.20 : 5,218,932.30 = 2,203,829.80 : x - Step 2: Convert to fraction form
3,479,288.20/5,218,932.30 = 2,203,829.80/x - Step 3: Cross multiply
3,479,288.20x = 5,218,932.30 × 2,203,829.80 - Step 4: Simplify right side
3,479,288.20x = 11,501,638,526,922.54 - Step 5: Solve for x
x = 11,501,638,526,922.54/3,479,288.20 - Step 6: Final answer
x = 3,305,744.70
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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.