Finding the Fourth Proportional to 3,425,488.80, 5,138,231.18 and 3,198,484.84
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Solution
The fourth proportional to 3,425,488.80, 5,138,231.18 and 3,198,484.84 is: 4,797,725.37
Step by Step Solution
- Step 1: Write the proportion equation
3,425,488.80 : 5,138,231.18 = 3,198,484.84 : x - Step 2: Convert to fraction form
3,425,488.80/5,138,231.18 = 3,198,484.84/x - Step 3: Cross multiply
3,425,488.80x = 5,138,231.18 × 3,198,484.84 - Step 4: Simplify right side
3,425,488.80x = 16,434,554,533,645.31 - Step 5: Solve for x
x = 16,434,554,533,645.31/3,425,488.80 - Step 6: Final answer
x = 4,797,725.37
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1.5x scale
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.