Finding the Fourth Proportional to 422,682.75, 583,361.87 and 261,589.68
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Solution
The fourth proportional to 422,682.75, 583,361.87 and 261,589.68 is: 361,030.69
Step by Step Solution
- Step 1: Write the proportion equation
422,682.75 : 583,361.87 = 261,589.68 : x - Step 2: Convert to fraction form
422,682.75/583,361.87 = 261,589.68/x - Step 3: Cross multiply
422,682.75x = 583,361.87 × 261,589.68 - Step 4: Simplify right side
422,682.75x = 152,601,443,589.55 - Step 5: Solve for x
x = 152,601,443,589.55/422,682.75 - Step 6: Final answer
x = 361,030.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.