Finding the Fourth Proportional to 922.23, 1,272.63 and 528.99
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Solution
The fourth proportional to 922.23, 1,272.63 and 528.99 is: 729.98
Step by Step Solution
- Step 1: Write the proportion equation
922.23 : 1,272.63 = 528.99 : x - Step 2: Convert to fraction form
922.23/1,272.63 = 528.99/x - Step 3: Cross multiply
922.23x = 1,272.63 × 528.99 - Step 4: Simplify right side
922.23x = 673,208.54 - Step 5: Solve for x
x = 673,208.54/922.23 - Step 6: Final answer
x = 729.98
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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.