Finding the Fourth Proportional to 428,138.87, 590,806.26 and 234,507.96
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Solution
The fourth proportional to 428,138.87, 590,806.26 and 234,507.96 is: 323,607.09
Step by Step Solution
- Step 1: Write the proportion equation
428,138.87 : 590,806.26 = 234,507.96 : x - Step 2: Convert to fraction form
428,138.87/590,806.26 = 234,507.96/x - Step 3: Cross multiply
428,138.87x = 590,806.26 × 234,507.96 - Step 4: Simplify right side
428,138.87x = 138,548,770,787.83 - Step 5: Solve for x
x = 138,548,770,787.83/428,138.87 - Step 6: Final answer
x = 323,607.09
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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.