Finding the Fourth Proportional to 440.29, 660.02 and 403.84
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Solution
The fourth proportional to 440.29, 660.02 and 403.84 is: 605.38
Step by Step Solution
- Step 1: Write the proportion equation
440.29 : 660.02 = 403.84 : x - Step 2: Convert to fraction form
440.29/660.02 = 403.84/x - Step 3: Cross multiply
440.29x = 660.02 × 403.84 - Step 4: Simplify right side
440.29x = 266,539.18 - Step 5: Solve for x
x = 266,539.18/440.29 - Step 6: Final answer
x = 605.38
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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.