Finding the Fourth Proportional to 460.19, 688.74 and 443.99
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Solution
The fourth proportional to 460.19, 688.74 and 443.99 is: 664.49
Step by Step Solution
- Step 1: Write the proportion equation
460.19 : 688.74 = 443.99 : x - Step 2: Convert to fraction form
460.19/688.74 = 443.99/x - Step 3: Cross multiply
460.19x = 688.74 × 443.99 - Step 4: Simplify right side
460.19x = 305,790.23 - Step 5: Solve for x
x = 305,790.23/460.19 - Step 6: Final answer
x = 664.49
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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.