Finding the Fourth Proportional to 521,194.20, 781,791.30 and 492,163.80
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Solution
The fourth proportional to 521,194.20, 781,791.30 and 492,163.80 is: 738,245.70
Step by Step Solution
- Step 1: Write the proportion equation
521,194.20 : 781,791.30 = 492,163.80 : x - Step 2: Convert to fraction form
521,194.20/781,791.30 = 492,163.80/x - Step 3: Cross multiply
521,194.20x = 781,791.30 × 492,163.80 - Step 4: Simplify right side
521,194.20x = 384,769,377,014.94 - Step 5: Solve for x
x = 384,769,377,014.94/521,194.20 - Step 6: Final answer
x = 738,245.70
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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.