Finding the Fourth Proportional to 3,467,836.40, 4,785,760.68 and 2,143,554.44
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Solution
The fourth proportional to 3,467,836.40, 4,785,760.68 and 2,143,554.44 is: 2,958,195.65
Step by Step Solution
- Step 1: Write the proportion equation
3,467,836.40 : 4,785,760.68 = 2,143,554.44 : x - Step 2: Convert to fraction form
3,467,836.40/4,785,760.68 = 2,143,554.44/x - Step 3: Cross multiply
3,467,836.40x = 4,785,760.68 × 2,143,554.44 - Step 4: Simplify right side
3,467,836.40x = 10,258,538,554,391.42 - Step 5: Solve for x
x = 10,258,538,554,391.42/3,467,836.40 - Step 6: Final answer
x = 2,958,195.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.