Finding the Fourth Proportional to 415,258.40, 622,887.60 and 411,321.80
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Solution
The fourth proportional to 415,258.40, 622,887.60 and 411,321.80 is: 616,982.70
Step by Step Solution
- Step 1: Write the proportion equation
415,258.40 : 622,887.60 = 411,321.80 : x - Step 2: Convert to fraction form
415,258.40/622,887.60 = 411,321.80/x - Step 3: Cross multiply
415,258.40x = 622,887.60 × 411,321.80 - Step 4: Simplify right side
415,258.40x = 256,207,248,829.68 - Step 5: Solve for x
x = 256,207,248,829.68/415,258.40 - Step 6: Final answer
x = 616,982.70
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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.