Finding the Fourth Proportional to 3,638,723.75, 5,458,348.20 and 1,394,861.75
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Solution
The fourth proportional to 3,638,723.75, 5,458,348.20 and 1,394,861.75 is: 2,092,393.28
Step by Step Solution
- Step 1: Write the proportion equation
3,638,723.75 : 5,458,348.20 = 1,394,861.75 : x - Step 2: Convert to fraction form
3,638,723.75/5,458,348.20 = 1,394,861.75/x - Step 3: Cross multiply
3,638,723.75x = 5,458,348.20 × 1,394,861.75 - Step 4: Simplify right side
3,638,723.75x = 7,613,641,122,361.35 - Step 5: Solve for x
x = 7,613,641,122,361.35/3,638,723.75 - Step 6: Final answer
x = 2,092,393.28
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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.