Finding the Fourth Proportional to 2,134,198.80, 3,201,006.60 and 638,290.80
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Solution
The fourth proportional to 2,134,198.80, 3,201,006.60 and 638,290.80 is: 957,348.99
Step by Step Solution
- Step 1: Write the proportion equation
2,134,198.80 : 3,201,006.60 = 638,290.80 : x - Step 2: Convert to fraction form
2,134,198.80/3,201,006.60 = 638,290.80/x - Step 3: Cross multiply
2,134,198.80x = 3,201,006.60 × 638,290.80 - Step 4: Simplify right side
2,134,198.80x = 2,043,173,063,519.28 - Step 5: Solve for x
x = 2,043,173,063,519.28/2,134,198.80 - Step 6: Final answer
x = 957,348.99
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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.