Finding the Fourth Proportional to 489,661.20, 734,491.80 and 454,231.80
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Solution
The fourth proportional to 489,661.20, 734,491.80 and 454,231.80 is: 681,347.70
Step by Step Solution
- Step 1: Write the proportion equation
489,661.20 : 734,491.80 = 454,231.80 : x - Step 2: Convert to fraction form
489,661.20/734,491.80 = 454,231.80/x - Step 3: Cross multiply
489,661.20x = 734,491.80 × 454,231.80 - Step 4: Simplify right side
489,661.20x = 333,629,532,399.24 - Step 5: Solve for x
x = 333,629,532,399.24/489,661.20 - Step 6: Final answer
x = 681,347.70
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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.