Finding the Fourth Proportional to 3,646,761.60, 5,475,067.20 and 2,131,996.80
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Solution
The fourth proportional to 3,646,761.60, 5,475,067.20 and 2,131,996.80 is: 3,200,874.37
Step by Step Solution
- Step 1: Write the proportion equation
3,646,761.60 : 5,475,067.20 = 2,131,996.80 : x - Step 2: Convert to fraction form
3,646,761.60/5,475,067.20 = 2,131,996.80/x - Step 3: Cross multiply
3,646,761.60x = 5,475,067.20 × 2,131,996.80 - Step 4: Simplify right side
3,646,761.60x = 11,672,825,750,184.96 - Step 5: Solve for x
x = 11,672,825,750,184.96/3,646,761.60 - Step 6: Final answer
x = 3,200,874.37
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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.