Finding the Fourth Proportional to 3,107,940.38, 4,288,388.37 and 1,731,249.84
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Solution
The fourth proportional to 3,107,940.38, 4,288,388.37 and 1,731,249.84 is: 2,388,807.63
Step by Step Solution
- Step 1: Write the proportion equation
3,107,940.38 : 4,288,388.37 = 1,731,249.84 : x - Step 2: Convert to fraction form
3,107,940.38/4,288,388.37 = 1,731,249.84/x - Step 3: Cross multiply
3,107,940.38x = 4,288,388.37 × 1,731,249.84 - Step 4: Simplify right side
3,107,940.38x = 7,424,271,679,420.36 - Step 5: Solve for x
x = 7,424,271,679,420.36/3,107,940.38 - Step 6: Final answer
x = 2,388,807.63
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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.