Finding the Fourth Proportional to 526.91, 790.97 and 419.99
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Solution
The fourth proportional to 526.91, 790.97 and 419.99 is: 630.46
Step by Step Solution
- Step 1: Write the proportion equation
526.91 : 790.97 = 419.99 : x - Step 2: Convert to fraction form
526.91/790.97 = 419.99/x - Step 3: Cross multiply
526.91x = 790.97 × 419.99 - Step 4: Simplify right side
526.91x = 332,193.44 - Step 5: Solve for x
x = 332,193.44/526.91 - Step 6: Final answer
x = 630.46
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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.