Finding the Third Proportional to 747 and 1,136.50
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Solution
The third proportional to 747 and 1,136.50 is: 1,729.09
Step by Step Solution
- Step 1: Write the proportion equation
747 : 1,136.50 = 1,136.50 : x - Step 2: Convert to fraction form
747/1,136.50 = 1,136.50/x - Step 3: Cross multiply
747x = 1,136.50 × 1,136.50 - Step 4: Simplify right side
747x = 1,291,632.25 - Step 5: Solve for x
x = 1,291,632.25/747 - Step 6: Final answer
x = 1,729.09
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.