Finding the Fourth Proportional to 638,453.76, 957,472.24 and 211,874.99
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Solution
The fourth proportional to 638,453.76, 957,472.24 and 211,874.99 is: 317,743.33
Step by Step Solution
- Step 1: Write the proportion equation
638,453.76 : 957,472.24 = 211,874.99 : x - Step 2: Convert to fraction form
638,453.76/957,472.24 = 211,874.99/x - Step 3: Cross multiply
638,453.76x = 957,472.24 × 211,874.99 - Step 4: Simplify right side
638,453.76x = 202,864,421,275.28 - Step 5: Solve for x
x = 202,864,421,275.28/638,453.76 - Step 6: Final answer
x = 317,743.33
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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.