Finding the Fourth Proportional to 810,949.20, 1,119,064.68 and 448,351.92
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Solution
The fourth proportional to 810,949.20, 1,119,064.68 and 448,351.92 is: 618,700.65
Step by Step Solution
- Step 1: Write the proportion equation
810,949.20 : 1,119,064.68 = 448,351.92 : x - Step 2: Convert to fraction form
810,949.20/1,119,064.68 = 448,351.92/x - Step 3: Cross multiply
810,949.20x = 1,119,064.68 × 448,351.92 - Step 4: Simplify right side
810,949.20x = 501,734,797,882.19 - Step 5: Solve for x
x = 501,734,797,882.19/810,949.20 - Step 6: Final answer
x = 618,700.65
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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.