Finding the Fourth Proportional to 913,912.96, 1,261,201.44 and 511,504.96
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Solution
The fourth proportional to 913,912.96, 1,261,201.44 and 511,504.96 is: 705,877.72
Step by Step Solution
- Step 1: Write the proportion equation
913,912.96 : 1,261,201.44 = 511,504.96 : x - Step 2: Convert to fraction form
913,912.96/1,261,201.44 = 511,504.96/x - Step 3: Cross multiply
913,912.96x = 1,261,201.44 × 511,504.96 - Step 4: Simplify right side
913,912.96x = 645,110,792,119.14 - Step 5: Solve for x
x = 645,110,792,119.14/913,912.96 - Step 6: Final answer
x = 705,877.72
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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.