Finding the Fourth Proportional to 1,244, 1,864.74 and 513.98
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Solution
The fourth proportional to 1,244, 1,864.74 and 513.98 is: 770.45
Step by Step Solution
- Step 1: Write the proportion equation
1,244 : 1,864.74 = 513.98 : x - Step 2: Convert to fraction form
1,244/1,864.74 = 513.98/x - Step 3: Cross multiply
1,244x = 1,864.74 × 513.98 - Step 4: Simplify right side
1,244x = 958,439.07 - Step 5: Solve for x
x = 958,439.07/1,244 - Step 6: Final answer
x = 770.45
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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.