Finding the Fourth Proportional to 913,388.09, 1,370,386.41 and 306,236.49
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Solution
The fourth proportional to 913,388.09, 1,370,386.41 and 306,236.49 is: 459,456.75
Step by Step Solution
- Step 1: Write the proportion equation
913,388.09 : 1,370,386.41 = 306,236.49 : x - Step 2: Convert to fraction form
913,388.09/1,370,386.41 = 306,236.49/x - Step 3: Cross multiply
913,388.09x = 1,370,386.41 × 306,236.49 - Step 4: Simplify right side
913,388.09x = 419,662,324,142.10 - Step 5: Solve for x
x = 419,662,324,142.10/913,388.09 - Step 6: Final answer
x = 459,456.75
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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.