Finding the Fourth Proportional to 505,231.51, 757,785.84 and 315,708.79
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Solution
The fourth proportional to 505,231.51, 757,785.84 and 315,708.79 is: 473,524.80
Step by Step Solution
- Step 1: Write the proportion equation
505,231.51 : 757,785.84 = 315,708.79 : x - Step 2: Convert to fraction form
505,231.51/757,785.84 = 315,708.79/x - Step 3: Cross multiply
505,231.51x = 757,785.84 × 315,708.79 - Step 4: Simplify right side
505,231.51x = 239,239,650,625.53 - Step 5: Solve for x
x = 239,239,650,625.53/505,231.51 - Step 6: Final answer
x = 473,524.80
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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.