Finding the Fourth Proportional to 416,003.56, 622,780.62 and 257,723.08
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Solution
The fourth proportional to 416,003.56, 622,780.62 and 257,723.08 is: 385,825.88
Step by Step Solution
- Step 1: Write the proportion equation
416,003.56 : 622,780.62 = 257,723.08 : x - Step 2: Convert to fraction form
416,003.56/622,780.62 = 257,723.08/x - Step 3: Cross multiply
416,003.56x = 622,780.62 × 257,723.08 - Step 4: Simplify right side
416,003.56x = 160,504,939,550.71 - Step 5: Solve for x
x = 160,504,939,550.71/416,003.56 - Step 6: Final answer
x = 385,825.88
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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.