Finding the Fourth Proportional to 385,708.38, 578,450.84 and 115,825.62
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Solution
The fourth proportional to 385,708.38, 578,450.84 and 115,825.62 is: 173,704.88
Step by Step Solution
- Step 1: Write the proportion equation
385,708.38 : 578,450.84 = 115,825.62 : x - Step 2: Convert to fraction form
385,708.38/578,450.84 = 115,825.62/x - Step 3: Cross multiply
385,708.38x = 578,450.84 × 115,825.62 - Step 4: Simplify right side
385,708.38x = 66,999,428,772.58 - Step 5: Solve for x
x = 66,999,428,772.58/385,708.38 - Step 6: Final answer
x = 173,704.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.