Finding the Fourth Proportional to 427,348.26, 640,785.72 and 174,806.09
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Solution
The fourth proportional to 427,348.26, 640,785.72 and 174,806.09 is: 262,112.33
Step by Step Solution
- Step 1: Write the proportion equation
427,348.26 : 640,785.72 = 174,806.09 : x - Step 2: Convert to fraction form
427,348.26/640,785.72 = 174,806.09/x - Step 3: Cross multiply
427,348.26x = 640,785.72 × 174,806.09 - Step 4: Simplify right side
427,348.26x = 112,013,246,241.04 - Step 5: Solve for x
x = 112,013,246,241.04/427,348.26 - Step 6: Final answer
x = 262,112.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.