Finding the Fourth Proportional to 329,793.90, 494,107.65 and 279,638.70
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Solution
The fourth proportional to 329,793.90, 494,107.65 and 279,638.70 is: 418,963.54
Step by Step Solution
- Step 1: Write the proportion equation
329,793.90 : 494,107.65 = 279,638.70 : x - Step 2: Convert to fraction form
329,793.90/494,107.65 = 279,638.70/x - Step 3: Cross multiply
329,793.90x = 494,107.65 × 279,638.70 - Step 4: Simplify right side
329,793.90x = 138,171,620,906.06 - Step 5: Solve for x
x = 138,171,620,906.06/329,793.90 - Step 6: Final answer
x = 418,963.54
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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.