Finding the Fourth Proportional to 850.68, 1,276.92 and 418.14
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Solution
The fourth proportional to 850.68, 1,276.92 and 418.14 is: 627.65
Step by Step Solution
- Step 1: Write the proportion equation
850.68 : 1,276.92 = 418.14 : x - Step 2: Convert to fraction form
850.68/1,276.92 = 418.14/x - Step 3: Cross multiply
850.68x = 1,276.92 × 418.14 - Step 4: Simplify right side
850.68x = 533,931.33 - Step 5: Solve for x
x = 533,931.33/850.68 - Step 6: Final answer
x = 627.65
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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.