Finding the Fourth Proportional to 770,639.54, 1,063,481.02 and 431,107.79
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Solution
The fourth proportional to 770,639.54, 1,063,481.02 and 431,107.79 is: 594,927.88
Step by Step Solution
- Step 1: Write the proportion equation
770,639.54 : 1,063,481.02 = 431,107.79 : x - Step 2: Convert to fraction form
770,639.54/1,063,481.02 = 431,107.79/x - Step 3: Cross multiply
770,639.54x = 1,063,481.02 × 431,107.79 - Step 4: Simplify right side
770,639.54x = 458,474,945,843.97 - Step 5: Solve for x
x = 458,474,945,843.97/770,639.54 - Step 6: Final answer
x = 594,927.88
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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.