Finding the Fourth Proportional to 638,540.28, 957,163.64 and 414,043.11
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Solution
The fourth proportional to 638,540.28, 957,163.64 and 414,043.11 is: 620,645.28
Step by Step Solution
- Step 1: Write the proportion equation
638,540.28 : 957,163.64 = 414,043.11 : x - Step 2: Convert to fraction form
638,540.28/957,163.64 = 414,043.11/x - Step 3: Cross multiply
638,540.28x = 957,163.64 × 414,043.11 - Step 4: Simplify right side
638,540.28x = 396,307,008,214.31 - Step 5: Solve for x
x = 396,307,008,214.31/638,540.28 - Step 6: Final answer
x = 620,645.28
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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.