Finding the Fourth Proportional to 4,128,976.44, 6,193,464.66 and 1,289,331.90
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Solution
The fourth proportional to 4,128,976.44, 6,193,464.66 and 1,289,331.90 is: 1,933,997.85
Step by Step Solution
- Step 1: Write the proportion equation
4,128,976.44 : 6,193,464.66 = 1,289,331.90 : x - Step 2: Convert to fraction form
4,128,976.44/6,193,464.66 = 1,289,331.90/x - Step 3: Cross multiply
4,128,976.44x = 6,193,464.66 × 1,289,331.90 - Step 4: Simplify right side
4,128,976.44x = 7,985,431,557,660.65 - Step 5: Solve for x
x = 7,985,431,557,660.65/4,128,976.44 - Step 6: Final answer
x = 1,933,997.85
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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.