Finding the Fourth Proportional to 757,787.84, 1,045,672.72 and 418,234.20
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Solution
The fourth proportional to 757,787.84, 1,045,672.72 and 418,234.20 is: 577,122.08
Step by Step Solution
- Step 1: Write the proportion equation
757,787.84 : 1,045,672.72 = 418,234.20 : x - Step 2: Convert to fraction form
757,787.84/1,045,672.72 = 418,234.20/x - Step 3: Cross multiply
757,787.84x = 1,045,672.72 × 418,234.20 - Step 4: Simplify right side
757,787.84x = 437,336,093,511.02 - Step 5: Solve for x
x = 437,336,093,511.02/757,787.84 - Step 6: Final answer
x = 577,122.08
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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.