Finding the Fourth Proportional to 428,879.06, 591,879.94 and 247,624.14
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Solution
The fourth proportional to 428,879.06, 591,879.94 and 247,624.14 is: 341,736.81
Step by Step Solution
- Step 1: Write the proportion equation
428,879.06 : 591,879.94 = 247,624.14 : x - Step 2: Convert to fraction form
428,879.06/591,879.94 = 247,624.14/x - Step 3: Cross multiply
428,879.06x = 591,879.94 × 247,624.14 - Step 4: Simplify right side
428,879.06x = 146,563,761,125.75 - Step 5: Solve for x
x = 146,563,761,125.75/428,879.06 - Step 6: Final answer
x = 341,736.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.