Finding the Fourth Proportional to 326,617.77, 489,735.94 and 126,704.55
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Solution
The fourth proportional to 326,617.77, 489,735.94 and 126,704.55 is: 189,982.84
Step by Step Solution
- Step 1: Write the proportion equation
326,617.77 : 489,735.94 = 126,704.55 : x - Step 2: Convert to fraction form
326,617.77/489,735.94 = 126,704.55/x - Step 3: Cross multiply
326,617.77x = 489,735.94 × 126,704.55 - Step 4: Simplify right side
326,617.77x = 62,051,769,131.09 - Step 5: Solve for x
x = 62,051,769,131.09/326,617.77 - Step 6: Final answer
x = 189,982.84
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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.