Finding the Fourth Proportional to 724.53, 1,087.26 and 416.99
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Solution
The fourth proportional to 724.53, 1,087.26 and 416.99 is: 625.75
Step by Step Solution
- Step 1: Write the proportion equation
724.53 : 1,087.26 = 416.99 : x - Step 2: Convert to fraction form
724.53/1,087.26 = 416.99/x - Step 3: Cross multiply
724.53x = 1,087.26 × 416.99 - Step 4: Simplify right side
724.53x = 453,376.55 - Step 5: Solve for x
x = 453,376.55/724.53 - Step 6: Final answer
x = 625.75
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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.