Finding the Fourth Proportional to 646,163.65, 969,245.74 and 290,762.51
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Solution
The fourth proportional to 646,163.65, 969,245.74 and 290,762.51 is: 436,143.88
Step by Step Solution
- Step 1: Write the proportion equation
646,163.65 : 969,245.74 = 290,762.51 : x - Step 2: Convert to fraction form
646,163.65/969,245.74 = 290,762.51/x - Step 3: Cross multiply
646,163.65x = 969,245.74 × 290,762.51 - Step 4: Simplify right side
646,163.65x = 281,820,324,169.21 - Step 5: Solve for x
x = 281,820,324,169.21/646,163.65 - Step 6: Final answer
x = 436,143.88
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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.