Finding the Fourth Proportional to 319,429.63, 479,456.07 and 263,836.09
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Solution
The fourth proportional to 319,429.63, 479,456.07 and 263,836.09 is: 396,011.52
Step by Step Solution
- Step 1: Write the proportion equation
319,429.63 : 479,456.07 = 263,836.09 : x - Step 2: Convert to fraction form
319,429.63/479,456.07 = 263,836.09/x - Step 3: Cross multiply
319,429.63x = 479,456.07 × 263,836.09 - Step 4: Simplify right side
319,429.63x = 126,497,814,835.57 - Step 5: Solve for x
x = 126,497,814,835.57/319,429.63 - Step 6: Final answer
x = 396,011.52
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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.