Finding the Fourth Proportional to 1,163.68, 1,745.16 and 394
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Solution
The fourth proportional to 1,163.68, 1,745.16 and 394 is: 590.88
Step by Step Solution
- Step 1: Write the proportion equation
1,163.68 : 1,745.16 = 394 : x - Step 2: Convert to fraction form
1,163.68/1,745.16 = 394/x - Step 3: Cross multiply
1,163.68x = 1,745.16 × 394 - Step 4: Simplify right side
1,163.68x = 687,593.04 - Step 5: Solve for x
x = 687,593.04/1,163.68 - Step 6: Final answer
x = 590.88
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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.