Finding the Fourth Proportional to 992.09, 1,368.99 and 549.99
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Solution
The fourth proportional to 992.09, 1,368.99 and 549.99 is: 758.93
Step by Step Solution
- Step 1: Write the proportion equation
992.09 : 1,368.99 = 549.99 : x - Step 2: Convert to fraction form
992.09/1,368.99 = 549.99/x - Step 3: Cross multiply
992.09x = 1,368.99 × 549.99 - Step 4: Simplify right side
992.09x = 752,930.81 - Step 5: Solve for x
x = 752,930.81/992.09 - Step 6: Final answer
x = 758.93
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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.