Finding the Fourth Proportional to 816,626.48, 1,224,936.99 and 209,414.13
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Solution
The fourth proportional to 816,626.48, 1,224,936.99 and 209,414.13 is: 314,120.50
Step by Step Solution
- Step 1: Write the proportion equation
816,626.48 : 1,224,936.99 = 209,414.13 : x - Step 2: Convert to fraction form
816,626.48/1,224,936.99 = 209,414.13/x - Step 3: Cross multiply
816,626.48x = 1,224,936.99 × 209,414.13 - Step 4: Simplify right side
816,626.48x = 256,519,120,102.04 - Step 5: Solve for x
x = 256,519,120,102.04/816,626.48 - Step 6: Final answer
x = 314,120.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.