Finding the Fourth Proportional to 833.68, 1,247.60 and 574
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Solution
The fourth proportional to 833.68, 1,247.60 and 574 is: 858.99
Step by Step Solution
- Step 1: Write the proportion equation
833.68 : 1,247.60 = 574 : x - Step 2: Convert to fraction form
833.68/1,247.60 = 574/x - Step 3: Cross multiply
833.68x = 1,247.60 × 574 - Step 4: Simplify right side
833.68x = 716,122.40 - Step 5: Solve for x
x = 716,122.40/833.68 - Step 6: Final answer
x = 858.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.