Finding the Fourth Proportional to 395,712.24, 593,305.92 and 129,379.44
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Solution
The fourth proportional to 395,712.24, 593,305.92 and 129,379.44 is: 193,983.35
Step by Step Solution
- Step 1: Write the proportion equation
395,712.24 : 593,305.92 = 129,379.44 : x - Step 2: Convert to fraction form
395,712.24/593,305.92 = 129,379.44/x - Step 3: Cross multiply
395,712.24x = 593,305.92 × 129,379.44 - Step 4: Simplify right side
395,712.24x = 76,761,587,678.28 - Step 5: Solve for x
x = 76,761,587,678.28/395,712.24 - Step 6: Final answer
x = 193,983.35
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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.