Finding the Fourth Proportional to 2,639,822.40, 3,956,234.40 and 2,338,891.20
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Solution
The fourth proportional to 2,639,822.40, 3,956,234.40 and 2,338,891.20 is: 3,505,236.50
Step by Step Solution
- Step 1: Write the proportion equation
2,639,822.40 : 3,956,234.40 = 2,338,891.20 : x - Step 2: Convert to fraction form
2,639,822.40/3,956,234.40 = 2,338,891.20/x - Step 3: Cross multiply
2,639,822.40x = 3,956,234.40 × 2,338,891.20 - Step 4: Simplify right side
2,639,822.40x = 9,253,201,823,297.28 - Step 5: Solve for x
x = 9,253,201,823,297.28/2,639,822.40 - Step 6: Final answer
x = 3,505,236.50
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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.