Finding the Fourth Proportional to 426,448.26, 639,635.33 and 173,755.40
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Solution
The fourth proportional to 426,448.26, 639,635.33 and 173,755.40 is: 260,617.99
Step by Step Solution
- Step 1: Write the proportion equation
426,448.26 : 639,635.33 = 173,755.40 : x - Step 2: Convert to fraction form
426,448.26/639,635.33 = 173,755.40/x - Step 3: Cross multiply
426,448.26x = 639,635.33 × 173,755.40 - Step 4: Simplify right side
426,448.26x = 111,140,089,854.49 - Step 5: Solve for x
x = 111,140,089,854.49/426,448.26 - Step 6: Final answer
x = 260,617.99
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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.