Finding the Fourth Proportional to 3,988,269.80, 5,982,404.70 and 1,857,645.80
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Solution
The fourth proportional to 3,988,269.80, 5,982,404.70 and 1,857,645.80 is: 2,786,468.70
Step by Step Solution
- Step 1: Write the proportion equation
3,988,269.80 : 5,982,404.70 = 1,857,645.80 : x - Step 2: Convert to fraction form
3,988,269.80/5,982,404.70 = 1,857,645.80/x - Step 3: Cross multiply
3,988,269.80x = 5,982,404.70 × 1,857,645.80 - Step 4: Simplify right side
3,988,269.80x = 11,113,188,964,855.26 - Step 5: Solve for x
x = 11,113,188,964,855.26/3,988,269.80 - Step 6: Final answer
x = 2,786,468.70
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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.