Finding the Fourth Proportional to 415,256.40, 622,884.60 and 411,319.80
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Solution
The fourth proportional to 415,256.40, 622,884.60 and 411,319.80 is: 616,979.70
Step by Step Solution
- Step 1: Write the proportion equation
415,256.40 : 622,884.60 = 411,319.80 : x - Step 2: Convert to fraction form
415,256.40/622,884.60 = 411,319.80/x - Step 3: Cross multiply
415,256.40x = 622,884.60 × 411,319.80 - Step 4: Simplify right side
415,256.40x = 256,204,769,095.08 - Step 5: Solve for x
x = 256,204,769,095.08/415,256.40 - Step 6: Final answer
x = 616,979.70
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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.