Finding the Fourth Proportional to 4,988,731.56, 6,879,857.70 and 3,269,227.56
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Solution
The fourth proportional to 4,988,731.56, 6,879,857.70 and 3,269,227.56 is: 4,508,524.89
Step by Step Solution
- Step 1: Write the proportion equation
4,988,731.56 : 6,879,857.70 = 3,269,227.56 : x - Step 2: Convert to fraction form
4,988,731.56/6,879,857.70 = 3,269,227.56/x - Step 3: Cross multiply
4,988,731.56x = 6,879,857.70 × 3,269,227.56 - Step 4: Simplify right side
4,988,731.56x = 22,491,820,401,718.21 - Step 5: Solve for x
x = 22,491,820,401,718.21/4,988,731.56 - Step 6: Final answer
x = 4,508,524.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.