Finding the Fourth Proportional to 481,491.96, 664,673.49 and 318,246.81
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Solution
The fourth proportional to 481,491.96, 664,673.49 and 318,246.81 is: 439,322.43
Step by Step Solution
- Step 1: Write the proportion equation
481,491.96 : 664,673.49 = 318,246.81 : x - Step 2: Convert to fraction form
481,491.96/664,673.49 = 318,246.81/x - Step 3: Cross multiply
481,491.96x = 664,673.49 × 318,246.81 - Step 4: Simplify right side
481,491.96x = 211,530,217,884.07 - Step 5: Solve for x
x = 211,530,217,884.07/481,491.96 - Step 6: Final answer
x = 439,322.43
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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.