Finding the Fourth Proportional to 2,119,415.36, 3,178,677.87 and 699,138.68
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Solution
The fourth proportional to 2,119,415.36, 3,178,677.87 and 699,138.68 is: 1,048,561.17
Step by Step Solution
- Step 1: Write the proportion equation
2,119,415.36 : 3,178,677.87 = 699,138.68 : x - Step 2: Convert to fraction form
2,119,415.36/3,178,677.87 = 699,138.68/x - Step 3: Cross multiply
2,119,415.36x = 3,178,677.87 × 699,138.68 - Step 4: Simplify right side
2,119,415.36x = 2,222,336,634,283.62 - Step 5: Solve for x
x = 2,222,336,634,283.62/2,119,415.36 - Step 6: Final answer
x = 1,048,561.17
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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.