Finding the Fourth Proportional to 489,452.40, 734,446.08 and 189,944.88
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Solution
The fourth proportional to 489,452.40, 734,446.08 and 189,944.88 is: 285,021.12
Step by Step Solution
- Step 1: Write the proportion equation
489,452.40 : 734,446.08 = 189,944.88 : x - Step 2: Convert to fraction form
489,452.40/734,446.08 = 189,944.88/x - Step 3: Cross multiply
489,452.40x = 734,446.08 × 189,944.88 - Step 4: Simplify right side
489,452.40x = 139,504,272,532.07 - Step 5: Solve for x
x = 139,504,272,532.07/489,452.40 - Step 6: Final answer
x = 285,021.12
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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.