Finding the Fourth Proportional to 922.14, 1,272.36 and 548.99
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Solution
The fourth proportional to 922.14, 1,272.36 and 548.99 is: 757.48
Step by Step Solution
- Step 1: Write the proportion equation
922.14 : 1,272.36 = 548.99 : x - Step 2: Convert to fraction form
922.14/1,272.36 = 548.99/x - Step 3: Cross multiply
922.14x = 1,272.36 × 548.99 - Step 4: Simplify right side
922.14x = 698,506.55 - Step 5: Solve for x
x = 698,506.55/922.14 - Step 6: Final answer
x = 757.48
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1.5x scale
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.