Finding the Fourth Proportional to 443,936.94, 612,799.58 and 290,984.99
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Solution
The fourth proportional to 443,936.94, 612,799.58 and 290,984.99 is: 401,668.48
Step by Step Solution
- Step 1: Write the proportion equation
443,936.94 : 612,799.58 = 290,984.99 : x - Step 2: Convert to fraction form
443,936.94/612,799.58 = 290,984.99/x - Step 3: Cross multiply
443,936.94x = 612,799.58 × 290,984.99 - Step 4: Simplify right side
443,936.94x = 178,315,475,139.38 - Step 5: Solve for x
x = 178,315,475,139.38/443,936.94 - Step 6: Final answer
x = 401,668.48
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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.