Finding the Fourth Proportional to 717.42, 988.29 and 495.99
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Solution
The fourth proportional to 717.42, 988.29 and 495.99 is: 683.26
Step by Step Solution
- Step 1: Write the proportion equation
717.42 : 988.29 = 495.99 : x - Step 2: Convert to fraction form
717.42/988.29 = 495.99/x - Step 3: Cross multiply
717.42x = 988.29 × 495.99 - Step 4: Simplify right side
717.42x = 490,181.96 - Step 5: Solve for x
x = 490,181.96/717.42 - Step 6: Final answer
x = 683.26
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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.