Finding the Fourth Proportional to 642, 963 and 604.76
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Solution
The fourth proportional to 642, 963 and 604.76 is: 907.14
Step by Step Solution
- Step 1: Write the proportion equation
642 : 963 = 604.76 : x - Step 2: Convert to fraction form
642/963 = 604.76/x - Step 3: Cross multiply
642x = 963 × 604.76 - Step 4: Simplify right side
642x = 582,383.88 - Step 5: Solve for x
x = 582,383.88/642 - Step 6: Final answer
x = 907.14
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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.