Finding the Fourth Proportional to 426,958.54, 640,542.94 and 300,845.09
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Solution
The fourth proportional to 426,958.54, 640,542.94 and 300,845.09 is: 451,341.70
Step by Step Solution
- Step 1: Write the proportion equation
426,958.54 : 640,542.94 = 300,845.09 : x - Step 2: Convert to fraction form
426,958.54/640,542.94 = 300,845.09/x - Step 3: Cross multiply
426,958.54x = 640,542.94 × 300,845.09 - Step 4: Simplify right side
426,958.54x = 192,704,195,679.36 - Step 5: Solve for x
x = 192,704,195,679.36/426,958.54 - Step 6: Final answer
x = 451,341.70
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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.