Finding the Fourth Proportional to 722,202.60, 996,638.97 and 399,912.69
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Solution
The fourth proportional to 722,202.60, 996,638.97 and 399,912.69 is: 551,879.17
Step by Step Solution
- Step 1: Write the proportion equation
722,202.60 : 996,638.97 = 399,912.69 : x - Step 2: Convert to fraction form
722,202.60/996,638.97 = 399,912.69/x - Step 3: Cross multiply
722,202.60x = 996,638.97 × 399,912.69 - Step 4: Simplify right side
722,202.60x = 398,568,571,451.53 - Step 5: Solve for x
x = 398,568,571,451.53/722,202.60 - Step 6: Final answer
x = 551,879.17
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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.