Finding the Fourth Proportional to 811,324.16, 1,217,157.76 and 305,874.56
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Solution
The fourth proportional to 811,324.16, 1,217,157.76 and 305,874.56 is: 458,876.50
Step by Step Solution
- Step 1: Write the proportion equation
811,324.16 : 1,217,157.76 = 305,874.56 : x - Step 2: Convert to fraction form
811,324.16/1,217,157.76 = 305,874.56/x - Step 3: Cross multiply
811,324.16x = 1,217,157.76 × 305,874.56 - Step 4: Simplify right side
811,324.16x = 372,297,594,290.59 - Step 5: Solve for x
x = 372,297,594,290.59/811,324.16 - Step 6: Final answer
x = 458,876.50
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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.