Finding the Fourth Proportional to 4,914,949.79, 7,372,418.33 and 1,320,716.79
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Solution
The fourth proportional to 4,914,949.79, 7,372,418.33 and 1,320,716.79 is: 1,981,073.48
Step by Step Solution
- Step 1: Write the proportion equation
4,914,949.79 : 7,372,418.33 = 1,320,716.79 : x - Step 2: Convert to fraction form
4,914,949.79/7,372,418.33 = 1,320,716.79/x - Step 3: Cross multiply
4,914,949.79x = 7,372,418.33 × 1,320,716.79 - Step 4: Simplify right side
4,914,949.79x = 9,736,876,664,731.18 - Step 5: Solve for x
x = 9,736,876,664,731.18/4,914,949.79 - Step 6: Final answer
x = 1,981,073.48
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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.