Finding the Fourth Proportional to 686,707.43, 1,030,190.27 and 276,408.09
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Solution
The fourth proportional to 686,707.43, 1,030,190.27 and 276,408.09 is: 414,664.11
Step by Step Solution
- Step 1: Write the proportion equation
686,707.43 : 1,030,190.27 = 276,408.09 : x - Step 2: Convert to fraction form
686,707.43/1,030,190.27 = 276,408.09/x - Step 3: Cross multiply
686,707.43x = 1,030,190.27 × 276,408.09 - Step 4: Simplify right side
686,707.43x = 284,752,923,485.24 - Step 5: Solve for x
x = 284,752,923,485.24/686,707.43 - Step 6: Final answer
x = 414,664.11
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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.