Finding the Fourth Proportional to 1,190.22, 1,785.06 and 324.60
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Solution
The fourth proportional to 1,190.22, 1,785.06 and 324.60 is: 486.83
Step by Step Solution
- Step 1: Write the proportion equation
1,190.22 : 1,785.06 = 324.60 : x - Step 2: Convert to fraction form
1,190.22/1,785.06 = 324.60/x - Step 3: Cross multiply
1,190.22x = 1,785.06 × 324.60 - Step 4: Simplify right side
1,190.22x = 579,430.48 - Step 5: Solve for x
x = 579,430.48/1,190.22 - Step 6: Final answer
x = 486.83
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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.