Finding the Fourth Proportional to 521,472.21, 782,433.09 and 281,538.47
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Solution
The fourth proportional to 521,472.21, 782,433.09 and 281,538.47 is: 422,429.06
Step by Step Solution
- Step 1: Write the proportion equation
521,472.21 : 782,433.09 = 281,538.47 : x - Step 2: Convert to fraction form
521,472.21/782,433.09 = 281,538.47/x - Step 3: Cross multiply
521,472.21x = 782,433.09 × 281,538.47 - Step 4: Simplify right side
521,472.21x = 220,285,015,035.97 - Step 5: Solve for x
x = 220,285,015,035.97/521,472.21 - Step 6: Final answer
x = 422,429.06
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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.