Finding the Fourth Proportional to 438.93, 604.48 and 399.99
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Solution
The fourth proportional to 438.93, 604.48 and 399.99 is: 550.85
Step by Step Solution
- Step 1: Write the proportion equation
438.93 : 604.48 = 399.99 : x - Step 2: Convert to fraction form
438.93/604.48 = 399.99/x - Step 3: Cross multiply
438.93x = 604.48 × 399.99 - Step 4: Simplify right side
438.93x = 241,785.96 - Step 5: Solve for x
x = 241,785.96/438.93 - Step 6: Final answer
x = 550.85
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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.