Finding the Fourth Proportional to 811,021.03, 1,119,163.87 and 448,423.13
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Solution
The fourth proportional to 811,021.03, 1,119,163.87 and 448,423.13 is: 618,798.95
Step by Step Solution
- Step 1: Write the proportion equation
811,021.03 : 1,119,163.87 = 448,423.13 : x - Step 2: Convert to fraction form
811,021.03/1,119,163.87 = 448,423.13/x - Step 3: Cross multiply
811,021.03x = 1,119,163.87 × 448,423.13 - Step 4: Simplify right side
811,021.03x = 501,858,965,568.31 - Step 5: Solve for x
x = 501,858,965,568.31/811,021.03 - Step 6: Final answer
x = 618,798.95
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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.