Finding the Fourth Proportional to 811,517.76, 1,217,277.12 and 305,941.44
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Solution
The fourth proportional to 811,517.76, 1,217,277.12 and 305,941.44 is: 458,912.34
Step by Step Solution
- Step 1: Write the proportion equation
811,517.76 : 1,217,277.12 = 305,941.44 : x - Step 2: Convert to fraction form
811,517.76/1,217,277.12 = 305,941.44/x - Step 3: Cross multiply
811,517.76x = 1,217,277.12 × 305,941.44 - Step 4: Simplify right side
811,517.76x = 372,415,514,971.85 - Step 5: Solve for x
x = 372,415,514,971.85/811,517.76 - Step 6: Final answer
x = 458,912.34
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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.