Finding the Fourth Proportional to 444.64, 668 and 391.68
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Solution
The fourth proportional to 444.64, 668 and 391.68 is: 588.44
Step by Step Solution
- Step 1: Write the proportion equation
444.64 : 668 = 391.68 : x - Step 2: Convert to fraction form
444.64/668 = 391.68/x - Step 3: Cross multiply
444.64x = 668 × 391.68 - Step 4: Simplify right side
444.64x = 261,642.24 - Step 5: Solve for x
x = 261,642.24/444.64 - Step 6: Final answer
x = 588.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.