Finding the Fourth Proportional to 528.06, 790.74 and 344.91
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Solution
The fourth proportional to 528.06, 790.74 and 344.91 is: 516.48
Step by Step Solution
- Step 1: Write the proportion equation
528.06 : 790.74 = 344.91 : x - Step 2: Convert to fraction form
528.06/790.74 = 344.91/x - Step 3: Cross multiply
528.06x = 790.74 × 344.91 - Step 4: Simplify right side
528.06x = 272,734.13 - Step 5: Solve for x
x = 272,734.13/528.06 - Step 6: Final answer
x = 516.48
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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.