Finding the Fourth Proportional to 682,043.11, 1,021,735.60 and 415,141.63
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Solution
The fourth proportional to 682,043.11, 1,021,735.60 and 415,141.63 is: 621,903.48
Step by Step Solution
- Step 1: Write the proportion equation
682,043.11 : 1,021,735.60 = 415,141.63 : x - Step 2: Convert to fraction form
682,043.11/1,021,735.60 = 415,141.63/x - Step 3: Cross multiply
682,043.11x = 1,021,735.60 × 415,141.63 - Step 4: Simplify right side
682,043.11x = 424,164,982,413.03 - Step 5: Solve for x
x = 424,164,982,413.03/682,043.11 - Step 6: Final answer
x = 621,903.48
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1.5x scale
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.