Finding the Fourth Proportional to 2,757,239.40, 4,135,859.10 and 2,119,510.20
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Solution
The fourth proportional to 2,757,239.40, 4,135,859.10 and 2,119,510.20 is: 3,179,265.30
Step by Step Solution
- Step 1: Write the proportion equation
2,757,239.40 : 4,135,859.10 = 2,119,510.20 : x - Step 2: Convert to fraction form
2,757,239.40/4,135,859.10 = 2,119,510.20/x - Step 3: Cross multiply
2,757,239.40x = 4,135,859.10 × 2,119,510.20 - Step 4: Simplify right side
2,757,239.40x = 8,765,995,548,212.82 - Step 5: Solve for x
x = 8,765,995,548,212.82/2,757,239.40 - Step 6: Final answer
x = 3,179,265.30
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1.5x scale
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.