Finding the Fourth Proportional to 529.44, 793.70 and 285.68
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Solution
The fourth proportional to 529.44, 793.70 and 285.68 is: 428.28
Step by Step Solution
- Step 1: Write the proportion equation
529.44 : 793.70 = 285.68 : x - Step 2: Convert to fraction form
529.44/793.70 = 285.68/x - Step 3: Cross multiply
529.44x = 793.70 × 285.68 - Step 4: Simplify right side
529.44x = 226,745.84 - Step 5: Solve for x
x = 226,745.84/529.44 - Step 6: Final answer
x = 428.28
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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.