Finding the Fourth Proportional to 758,163.46, 1,137,638.78 and 309,213.70
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Solution
The fourth proportional to 758,163.46, 1,137,638.78 and 309,213.70 is: 463,981.07
Step by Step Solution
- Step 1: Write the proportion equation
758,163.46 : 1,137,638.78 = 309,213.70 : x - Step 2: Convert to fraction form
758,163.46/1,137,638.78 = 309,213.70/x - Step 3: Cross multiply
758,163.46x = 1,137,638.78 × 309,213.70 - Step 4: Simplify right side
758,163.46x = 351,773,491,512.13 - Step 5: Solve for x
x = 351,773,491,512.13/758,163.46 - Step 6: Final answer
x = 463,981.07
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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.