Finding the Fourth Proportional to 865.28, 1,194 and 515.96
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Solution
The fourth proportional to 865.28, 1,194 and 515.96 is: 711.97
Step by Step Solution
- Step 1: Write the proportion equation
865.28 : 1,194 = 515.96 : x - Step 2: Convert to fraction form
865.28/1,194 = 515.96/x - Step 3: Cross multiply
865.28x = 1,194 × 515.96 - Step 4: Simplify right side
865.28x = 616,056.24 - Step 5: Solve for x
x = 616,056.24/865.28 - Step 6: Final answer
x = 711.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.