Finding the Fourth Proportional to 422,311.55, 582,785.35 and 228,716.08
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Solution
The fourth proportional to 422,311.55, 582,785.35 and 228,716.08 is: 315,625.70
Step by Step Solution
- Step 1: Write the proportion equation
422,311.55 : 582,785.35 = 228,716.08 : x - Step 2: Convert to fraction form
422,311.55/582,785.35 = 228,716.08/x - Step 3: Cross multiply
422,311.55x = 582,785.35 × 228,716.08 - Step 4: Simplify right side
422,311.55x = 133,292,378,704.67 - Step 5: Solve for x
x = 133,292,378,704.67/422,311.55 - Step 6: Final answer
x = 315,625.70
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1.5x scale
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.