Finding the Fourth Proportional to 905.26, 1,249.08 and 695.68
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Solution
The fourth proportional to 905.26, 1,249.08 and 695.68 is: 959.90
Step by Step Solution
- Step 1: Write the proportion equation
905.26 : 1,249.08 = 695.68 : x - Step 2: Convert to fraction form
905.26/1,249.08 = 695.68/x - Step 3: Cross multiply
905.26x = 1,249.08 × 695.68 - Step 4: Simplify right side
905.26x = 868,959.97 - Step 5: Solve for x
x = 868,959.97/905.26 - Step 6: Final answer
x = 959.90
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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.