Finding the Third Proportional to 692 and 990.50
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Solution
The third proportional to 692 and 990.50 is: 1,417.76
Step by Step Solution
- Step 1: Write the proportion equation
692 : 990.50 = 990.50 : x - Step 2: Convert to fraction form
692/990.50 = 990.50/x - Step 3: Cross multiply
692x = 990.50 × 990.50 - Step 4: Simplify right side
692x = 981,090.25 - Step 5: Solve for x
x = 981,090.25/692 - Step 6: Final answer
x = 1,417.76
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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.