Finding the Fourth Proportional to 883.13, 1,217.87 and 528.99
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Solution
The fourth proportional to 883.13, 1,217.87 and 528.99 is: 729.50
Step by Step Solution
- Step 1: Write the proportion equation
883.13 : 1,217.87 = 528.99 : x - Step 2: Convert to fraction form
883.13/1,217.87 = 528.99/x - Step 3: Cross multiply
883.13x = 1,217.87 × 528.99 - Step 4: Simplify right side
883.13x = 644,241.05 - Step 5: Solve for x
x = 644,241.05/883.13 - Step 6: Final answer
x = 729.50
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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.