Finding the Fourth Proportional to 319,601.26, 479,418.41 and 303,440.09
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Solution
The fourth proportional to 319,601.26, 479,418.41 and 303,440.09 is: 455,175.82
Step by Step Solution
- Step 1: Write the proportion equation
319,601.26 : 479,418.41 = 303,440.09 : x - Step 2: Convert to fraction form
319,601.26/479,418.41 = 303,440.09/x - Step 3: Cross multiply
319,601.26x = 479,418.41 × 303,440.09 - Step 4: Simplify right side
319,601.26x = 145,474,763,960.86 - Step 5: Solve for x
x = 145,474,763,960.86/319,601.26 - Step 6: Final answer
x = 455,175.82
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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.