Finding the Fourth Proportional to 905.26, 1,249.14 and 532.26
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Solution
The fourth proportional to 905.26, 1,249.14 and 532.26 is: 734.45
Step by Step Solution
- Step 1: Write the proportion equation
905.26 : 1,249.14 = 532.26 : x - Step 2: Convert to fraction form
905.26/1,249.14 = 532.26/x - Step 3: Cross multiply
905.26x = 1,249.14 × 532.26 - Step 4: Simplify right side
905.26x = 664,867.26 - Step 5: Solve for x
x = 664,867.26/905.26 - Step 6: Final answer
x = 734.45
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1.5x scale
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.