Finding the Fourth Proportional to 892,325.12, 1,338,389.72 and 261,245.12
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Solution
The fourth proportional to 892,325.12, 1,338,389.72 and 261,245.12 is: 391,839.00
Step by Step Solution
- Step 1: Write the proportion equation
892,325.12 : 1,338,389.72 = 261,245.12 : x - Step 2: Convert to fraction form
892,325.12/1,338,389.72 = 261,245.12/x - Step 3: Cross multiply
892,325.12x = 1,338,389.72 × 261,245.12 - Step 4: Simplify right side
892,325.12x = 349,647,783,008.17 - Step 5: Solve for x
x = 349,647,783,008.17/892,325.12 - Step 6: Final answer
x = 391,839.00
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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.