Finding the Fourth Proportional to 682,374.24, 1,022,190.57 and 339,785.55
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Solution
The fourth proportional to 682,374.24, 1,022,190.57 and 339,785.55 is: 508,995.75
Step by Step Solution
- Step 1: Write the proportion equation
682,374.24 : 1,022,190.57 = 339,785.55 : x - Step 2: Convert to fraction form
682,374.24/1,022,190.57 = 339,785.55/x - Step 3: Cross multiply
682,374.24x = 1,022,190.57 × 339,785.55 - Step 4: Simplify right side
682,374.24x = 347,325,585,032.26 - Step 5: Solve for x
x = 347,325,585,032.26/682,374.24 - Step 6: Final answer
x = 508,995.75
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1.5x scale
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.