Finding the Fourth Proportional to 831,869.26, 1,147,980.36 and 449,896.03
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Solution
The fourth proportional to 831,869.26, 1,147,980.36 and 449,896.03 is: 620,856.94
Step by Step Solution
- Step 1: Write the proportion equation
831,869.26 : 1,147,980.36 = 449,896.03 : x - Step 2: Convert to fraction form
831,869.26/1,147,980.36 = 449,896.03/x - Step 3: Cross multiply
831,869.26x = 1,147,980.36 × 449,896.03 - Step 4: Simplify right side
831,869.26x = 516,471,806,481.97 - Step 5: Solve for x
x = 516,471,806,481.97/831,869.26 - Step 6: Final answer
x = 620,856.94
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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.