Finding the Fourth Proportional to 489,631.11, 675,739.49 and 274,772.03
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Solution
The fourth proportional to 489,631.11, 675,739.49 and 274,772.03 is: 379,212.64
Step by Step Solution
- Step 1: Write the proportion equation
489,631.11 : 675,739.49 = 274,772.03 : x - Step 2: Convert to fraction form
489,631.11/675,739.49 = 274,772.03/x - Step 3: Cross multiply
489,631.11x = 675,739.49 × 274,772.03 - Step 4: Simplify right side
489,631.11x = 185,674,306,665.91 - Step 5: Solve for x
x = 185,674,306,665.91/489,631.11 - Step 6: Final answer
x = 379,212.64
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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.