Finding the Fourth Proportional to 616,321.26, 850,634.91 and 398,797.74
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Solution
The fourth proportional to 616,321.26, 850,634.91 and 398,797.74 is: 550,413.07
Step by Step Solution
- Step 1: Write the proportion equation
616,321.26 : 850,634.91 = 398,797.74 : x - Step 2: Convert to fraction form
616,321.26/850,634.91 = 398,797.74/x - Step 3: Cross multiply
616,321.26x = 850,634.91 × 398,797.74 - Step 4: Simplify right side
616,321.26x = 339,231,279,673.10 - Step 5: Solve for x
x = 339,231,279,673.10/616,321.26 - Step 6: Final answer
x = 550,413.07
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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.