Finding the Fourth Proportional to 483,618.09, 667,339.97 and 279,638.14
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Solution
The fourth proportional to 483,618.09, 667,339.97 and 279,638.14 is: 385,869.99
Step by Step Solution
- Step 1: Write the proportion equation
483,618.09 : 667,339.97 = 279,638.14 : x - Step 2: Convert to fraction form
483,618.09/667,339.97 = 279,638.14/x - Step 3: Cross multiply
483,618.09x = 667,339.97 × 279,638.14 - Step 4: Simplify right side
483,618.09x = 186,613,707,958.46 - Step 5: Solve for x
x = 186,613,707,958.46/483,618.09 - Step 6: Final answer
x = 385,869.99
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1.5x scale
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.