Finding the Fourth Proportional to 395,580.60, 593,447.28 and 129,269.28
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Solution
The fourth proportional to 395,580.60, 593,447.28 and 129,269.28 is: 193,928.88
Step by Step Solution
- Step 1: Write the proportion equation
395,580.60 : 593,447.28 = 129,269.28 : x - Step 2: Convert to fraction form
395,580.60/593,447.28 = 129,269.28/x - Step 3: Cross multiply
395,580.60x = 593,447.28 × 129,269.28 - Step 4: Simplify right side
395,580.60x = 76,714,502,603.56 - Step 5: Solve for x
x = 76,714,502,603.56/395,580.60 - Step 6: Final answer
x = 193,928.88
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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.