Finding the Fourth Proportional to 984.56, 1,476.47 and 326.32
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Solution
The fourth proportional to 984.56, 1,476.47 and 326.32 is: 489.35
Step by Step Solution
- Step 1: Write the proportion equation
984.56 : 1,476.47 = 326.32 : x - Step 2: Convert to fraction form
984.56/1,476.47 = 326.32/x - Step 3: Cross multiply
984.56x = 1,476.47 × 326.32 - Step 4: Simplify right side
984.56x = 481,795.12 - Step 5: Solve for x
x = 481,795.12/984.56 - Step 6: Final answer
x = 489.35
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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.