Finding the Fourth Proportional to 481,958.70, 722,938.05 and 304,811.70
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Solution
The fourth proportional to 481,958.70, 722,938.05 and 304,811.70 is: 457,217.55
Step by Step Solution
- Step 1: Write the proportion equation
481,958.70 : 722,938.05 = 304,811.70 : x - Step 2: Convert to fraction form
481,958.70/722,938.05 = 304,811.70/x - Step 3: Cross multiply
481,958.70x = 722,938.05 × 304,811.70 - Step 4: Simplify right side
481,958.70x = 220,359,976,015.19 - Step 5: Solve for x
x = 220,359,976,015.19/481,958.70 - Step 6: Final answer
x = 457,217.55
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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.