Finding the Fourth Proportional to 616,315.26, 850,626.63 and 398,791.74
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Solution
The fourth proportional to 616,315.26, 850,626.63 and 398,791.74 is: 550,404.79
Step by Step Solution
- Step 1: Write the proportion equation
616,315.26 : 850,626.63 = 398,791.74 : x - Step 2: Convert to fraction form
616,315.26/850,626.63 = 398,791.74/x - Step 3: Cross multiply
616,315.26x = 850,626.63 × 398,791.74 - Step 4: Simplify right side
616,315.26x = 339,222,873,868.04 - Step 5: Solve for x
x = 339,222,873,868.04/616,315.26 - Step 6: Final answer
x = 550,404.79
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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.