Finding the Fourth Proportional to 395,780.38, 593,677.05 and 115,313.02
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Solution
The fourth proportional to 395,780.38, 593,677.05 and 115,313.02 is: 172,971.42
Step by Step Solution
- Step 1: Write the proportion equation
395,780.38 : 593,677.05 = 115,313.02 : x - Step 2: Convert to fraction form
395,780.38/593,677.05 = 115,313.02/x - Step 3: Cross multiply
395,780.38x = 593,677.05 × 115,313.02 - Step 4: Simplify right side
395,780.38x = 68,458,693,540.19 - Step 5: Solve for x
x = 68,458,693,540.19/395,780.38 - Step 6: Final answer
x = 172,971.42
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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.