Finding the Fourth Proportional to 491,687.76, 737,881.52 and 379,480.08
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Solution
The fourth proportional to 491,687.76, 737,881.52 and 379,480.08 is: 569,490.15
Step by Step Solution
- Step 1: Write the proportion equation
491,687.76 : 737,881.52 = 379,480.08 : x - Step 2: Convert to fraction form
491,687.76/737,881.52 = 379,480.08/x - Step 3: Cross multiply
491,687.76x = 737,881.52 × 379,480.08 - Step 4: Simplify right side
491,687.76x = 280,011,338,240.12 - Step 5: Solve for x
x = 280,011,338,240.12/491,687.76 - Step 6: Final answer
x = 569,490.15
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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.