Finding the Fourth Proportional to 884.13, 1,220.12 and 491.18
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Solution
The fourth proportional to 884.13, 1,220.12 and 491.18 is: 677.83
Step by Step Solution
- Step 1: Write the proportion equation
884.13 : 1,220.12 = 491.18 : x - Step 2: Convert to fraction form
884.13/1,220.12 = 491.18/x - Step 3: Cross multiply
884.13x = 1,220.12 × 491.18 - Step 4: Simplify right side
884.13x = 599,289.99 - Step 5: Solve for x
x = 599,289.99/884.13 - Step 6: Final answer
x = 677.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.