Finding the Fourth Proportional to 4,212,759.20, 5,813,595.04 and 2,279,019.36
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Solution
The fourth proportional to 4,212,759.20, 5,813,595.04 and 2,279,019.36 is: 3,145,039.87
Step by Step Solution
- Step 1: Write the proportion equation
4,212,759.20 : 5,813,595.04 = 2,279,019.36 : x - Step 2: Convert to fraction form
4,212,759.20/5,813,595.04 = 2,279,019.36/x - Step 3: Cross multiply
4,212,759.20x = 5,813,595.04 × 2,279,019.36 - Step 4: Simplify right side
4,212,759.20x = 13,249,295,647,359.97 - Step 5: Solve for x
x = 13,249,295,647,359.97/4,212,759.20 - Step 6: Final answer
x = 3,145,039.87
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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.