Finding the Fourth Proportional to 426,093.36, 638,917.56 and 126,532.68
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Solution
The fourth proportional to 426,093.36, 638,917.56 and 126,532.68 is: 189,732.95
Step by Step Solution
- Step 1: Write the proportion equation
426,093.36 : 638,917.56 = 126,532.68 : x - Step 2: Convert to fraction form
426,093.36/638,917.56 = 126,532.68/x - Step 3: Cross multiply
426,093.36x = 638,917.56 × 126,532.68 - Step 4: Simplify right side
426,093.36x = 80,843,951,165.86 - Step 5: Solve for x
x = 80,843,951,165.86/426,093.36 - Step 6: Final answer
x = 189,732.95
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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.