Finding the Fourth Proportional to 445,442.40, 668,163.60 and 419,198.40
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Solution
The fourth proportional to 445,442.40, 668,163.60 and 419,198.40 is: 628,797.60
Step by Step Solution
- Step 1: Write the proportion equation
445,442.40 : 668,163.60 = 419,198.40 : x - Step 2: Convert to fraction form
445,442.40/668,163.60 = 419,198.40/x - Step 3: Cross multiply
445,442.40x = 668,163.60 × 419,198.40 - Step 4: Simplify right side
445,442.40x = 280,093,112,058.24 - Step 5: Solve for x
x = 280,093,112,058.24/445,442.40 - Step 6: Final answer
x = 628,797.60
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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.