Finding the Fourth Proportional to 579.74, 800.09 and 330.99
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Solution
The fourth proportional to 579.74, 800.09 and 330.99 is: 456.79
Step by Step Solution
- Step 1: Write the proportion equation
579.74 : 800.09 = 330.99 : x - Step 2: Convert to fraction form
579.74/800.09 = 330.99/x - Step 3: Cross multiply
579.74x = 800.09 × 330.99 - Step 4: Simplify right side
579.74x = 264,822.62 - Step 5: Solve for x
x = 264,822.62/579.74 - Step 6: Final answer
x = 456.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.