Finding the Fourth Proportional to 480,716.99, 663,478.19 and 308,849.80
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Solution
The fourth proportional to 480,716.99, 663,478.19 and 308,849.80 is: 426,269.73
Step by Step Solution
- Step 1: Write the proportion equation
480,716.99 : 663,478.19 = 308,849.80 : x - Step 2: Convert to fraction form
480,716.99/663,478.19 = 308,849.80/x - Step 3: Cross multiply
480,716.99x = 663,478.19 × 308,849.80 - Step 4: Simplify right side
480,716.99x = 204,915,101,424.22 - Step 5: Solve for x
x = 204,915,101,424.22/480,716.99 - Step 6: Final answer
x = 426,269.73
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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.