Finding the Fourth Proportional to 901,816.75, 1,244,546.24 and 499,408.75
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Solution
The fourth proportional to 901,816.75, 1,244,546.24 and 499,408.75 is: 689,205.74
Step by Step Solution
- Step 1: Write the proportion equation
901,816.75 : 1,244,546.24 = 499,408.75 : x - Step 2: Convert to fraction form
901,816.75/1,244,546.24 = 499,408.75/x - Step 3: Cross multiply
901,816.75x = 1,244,546.24 × 499,408.75 - Step 4: Simplify right side
901,816.75x = 621,537,282,035.60 - Step 5: Solve for x
x = 621,537,282,035.60/901,816.75 - Step 6: Final answer
x = 689,205.74
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1.5x scale
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.