Finding the Fourth Proportional to 827,163.70, 1,240,745.55 and 328,527.70
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Solution
The fourth proportional to 827,163.70, 1,240,745.55 and 328,527.70 is: 492,791.55
Step by Step Solution
- Step 1: Write the proportion equation
827,163.70 : 1,240,745.55 = 328,527.70 : x - Step 2: Convert to fraction form
827,163.70/1,240,745.55 = 328,527.70/x - Step 3: Cross multiply
827,163.70x = 1,240,745.55 × 328,527.70 - Step 4: Simplify right side
827,163.70x = 407,619,281,826.74 - Step 5: Solve for x
x = 407,619,281,826.74/827,163.70 - Step 6: Final answer
x = 492,791.55
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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.