Finding the Fourth Proportional to 811,197.93, 1,215,938.83 and 305,540.13
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Solution
The fourth proportional to 811,197.93, 1,215,938.83 and 305,540.13 is: 457,986.99
Step by Step Solution
- Step 1: Write the proportion equation
811,197.93 : 1,215,938.83 = 305,540.13 : x - Step 2: Convert to fraction form
811,197.93/1,215,938.83 = 305,540.13/x - Step 3: Cross multiply
811,197.93x = 1,215,938.83 × 305,540.13 - Step 4: Simplify right side
811,197.93x = 371,518,100,582.85 - Step 5: Solve for x
x = 371,518,100,582.85/811,197.93 - Step 6: Final answer
x = 457,986.99
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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.