Finding the Fourth Proportional to 1,119,817.09, 1,679,231.49 and 320,917.33
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Solution
The fourth proportional to 1,119,817.09, 1,679,231.49 and 320,917.33 is: 481,234.38
Step by Step Solution
- Step 1: Write the proportion equation
1,119,817.09 : 1,679,231.49 = 320,917.33 : x - Step 2: Convert to fraction form
1,119,817.09/1,679,231.49 = 320,917.33/x - Step 3: Cross multiply
1,119,817.09x = 1,679,231.49 × 320,917.33 - Step 4: Simplify right side
1,119,817.09x = 538,894,486,222.72 - Step 5: Solve for x
x = 538,894,486,222.72/1,119,817.09 - Step 6: Final answer
x = 481,234.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.