Finding the Fourth Proportional to 421,118.28, 581,757.84 and 364,431.24
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Solution
The fourth proportional to 421,118.28, 581,757.84 and 364,431.24 is: 503,446.99
Step by Step Solution
- Step 1: Write the proportion equation
421,118.28 : 581,757.84 = 364,431.24 : x - Step 2: Convert to fraction form
421,118.28/581,757.84 = 364,431.24/x - Step 3: Cross multiply
421,118.28x = 581,757.84 × 364,431.24 - Step 4: Simplify right side
421,118.28x = 212,010,731,010.92 - Step 5: Solve for x
x = 212,010,731,010.92/421,118.28 - Step 6: Final answer
x = 503,446.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.