Finding the Fourth Proportional to 685,540.42, 1,028,299.62 and 186,904.42
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Solution
The fourth proportional to 685,540.42, 1,028,299.62 and 186,904.42 is: 280,353.63
Step by Step Solution
- Step 1: Write the proportion equation
685,540.42 : 1,028,299.62 = 186,904.42 : x - Step 2: Convert to fraction form
685,540.42/1,028,299.62 = 186,904.42/x - Step 3: Cross multiply
685,540.42x = 1,028,299.62 × 186,904.42 - Step 4: Simplify right side
685,540.42x = 192,193,744,062.32 - Step 5: Solve for x
x = 192,193,744,062.32/685,540.42 - Step 6: Final answer
x = 280,353.63
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1.5x scale
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.