Finding the Fourth Proportional to 416,640.48, 574,533.84 and 356,410.44
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Solution
The fourth proportional to 416,640.48, 574,533.84 and 356,410.44 is: 491,478.55
Step by Step Solution
- Step 1: Write the proportion equation
416,640.48 : 574,533.84 = 356,410.44 : x - Step 2: Convert to fraction form
416,640.48/574,533.84 = 356,410.44/x - Step 3: Cross multiply
416,640.48x = 574,533.84 × 356,410.44 - Step 4: Simplify right side
416,640.48x = 204,769,858,709.29 - Step 5: Solve for x
x = 204,769,858,709.29/416,640.48 - Step 6: Final answer
x = 491,478.55
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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.