Finding the Fourth Proportional to 902.92, 1,246 and 509.94
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Solution
The fourth proportional to 902.92, 1,246 and 509.94 is: 703.70
Step by Step Solution
- Step 1: Write the proportion equation
902.92 : 1,246 = 509.94 : x - Step 2: Convert to fraction form
902.92/1,246 = 509.94/x - Step 3: Cross multiply
902.92x = 1,246 × 509.94 - Step 4: Simplify right side
902.92x = 635,385.24 - Step 5: Solve for x
x = 635,385.24/902.92 - Step 6: Final answer
x = 703.70
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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.