Finding the Fourth Proportional to 3,228,420.80, 4,453,087.04 and 2,019,097.28
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Solution
The fourth proportional to 3,228,420.80, 4,453,087.04 and 2,019,097.28 is: 2,785,019.82
Step by Step Solution
- Step 1: Write the proportion equation
3,228,420.80 : 4,453,087.04 = 2,019,097.28 : x - Step 2: Convert to fraction form
3,228,420.80/4,453,087.04 = 2,019,097.28/x - Step 3: Cross multiply
3,228,420.80x = 4,453,087.04 × 2,019,097.28 - Step 4: Simplify right side
3,228,420.80x = 8,991,215,930,067.25 - Step 5: Solve for x
x = 8,991,215,930,067.25/3,228,420.80 - Step 6: Final answer
x = 2,785,019.82
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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.