Finding the Fourth Proportional to 489,629.62, 733,754.94 and 389,344.78
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Solution
The fourth proportional to 489,629.62, 733,754.94 and 389,344.78 is: 583,468.90
Step by Step Solution
- Step 1: Write the proportion equation
489,629.62 : 733,754.94 = 389,344.78 : x - Step 2: Convert to fraction form
489,629.62/733,754.94 = 389,344.78/x - Step 3: Cross multiply
489,629.62x = 733,754.94 × 389,344.78 - Step 4: Simplify right side
489,629.62x = 285,683,655,688.21 - Step 5: Solve for x
x = 285,683,655,688.21/489,629.62 - Step 6: Final answer
x = 583,468.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.