Finding the Fourth Proportional to 511,249.19, 705,491.74 and 281,793.84
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Solution
The fourth proportional to 511,249.19, 705,491.74 and 281,793.84 is: 388,857.78
Step by Step Solution
- Step 1: Write the proportion equation
511,249.19 : 705,491.74 = 281,793.84 : x - Step 2: Convert to fraction form
511,249.19/705,491.74 = 281,793.84/x - Step 3: Cross multiply
511,249.19x = 705,491.74 × 281,793.84 - Step 4: Simplify right side
511,249.19x = 198,803,224,209.53 - Step 5: Solve for x
x = 198,803,224,209.53/511,249.19 - Step 6: Final answer
x = 388,857.78
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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.