Finding the Fourth Proportional to 819,137.28, 1,229,259.51 and 286,662.99
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Solution
The fourth proportional to 819,137.28, 1,229,259.51 and 286,662.99 is: 430,188.22
Step by Step Solution
- Step 1: Write the proportion equation
819,137.28 : 1,229,259.51 = 286,662.99 : x - Step 2: Convert to fraction form
819,137.28/1,229,259.51 = 286,662.99/x - Step 3: Cross multiply
819,137.28x = 1,229,259.51 × 286,662.99 - Step 4: Simplify right side
819,137.28x = 352,383,206,622.54 - Step 5: Solve for x
x = 352,383,206,622.54/819,137.28 - Step 6: Final answer
x = 430,188.22
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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.