Finding the Fourth Proportional to 319,428.63, 479,454.57 and 263,835.09
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Solution
The fourth proportional to 319,428.63, 479,454.57 and 263,835.09 is: 396,010.02
Step by Step Solution
- Step 1: Write the proportion equation
319,428.63 : 479,454.57 = 263,835.09 : x - Step 2: Convert to fraction form
319,428.63/479,454.57 = 263,835.09/x - Step 3: Cross multiply
319,428.63x = 479,454.57 × 263,835.09 - Step 4: Simplify right side
319,428.63x = 126,496,939,626.86 - Step 5: Solve for x
x = 126,496,939,626.86/319,428.63 - Step 6: Final answer
x = 396,010.02
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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.