Finding the Fourth Proportional to 3,286,738.40, 4,930,107.60 and 1,869,562.40
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Solution
The fourth proportional to 3,286,738.40, 4,930,107.60 and 1,869,562.40 is: 2,804,343.60
Step by Step Solution
- Step 1: Write the proportion equation
3,286,738.40 : 4,930,107.60 = 1,869,562.40 : x - Step 2: Convert to fraction form
3,286,738.40/4,930,107.60 = 1,869,562.40/x - Step 3: Cross multiply
3,286,738.40x = 4,930,107.60 × 1,869,562.40 - Step 4: Simplify right side
3,286,738.40x = 9,217,143,796,914.24 - Step 5: Solve for x
x = 9,217,143,796,914.24/3,286,738.40 - Step 6: Final answer
x = 2,804,343.60
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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.