Finding the Fourth Proportional to 550,475.70, 825,713.55 and 457,163.70
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Solution
The fourth proportional to 550,475.70, 825,713.55 and 457,163.70 is: 685,745.55
Step by Step Solution
- Step 1: Write the proportion equation
550,475.70 : 825,713.55 = 457,163.70 : x - Step 2: Convert to fraction form
550,475.70/825,713.55 = 457,163.70/x - Step 3: Cross multiply
550,475.70x = 825,713.55 × 457,163.70 - Step 4: Simplify right side
550,475.70x = 377,486,261,658.14 - Step 5: Solve for x
x = 377,486,261,658.14/550,475.70 - Step 6: Final answer
x = 685,745.55
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Similar ratio
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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.