Finding the Fourth Proportional to 2,114,678.09, 2,919,772.34 and 1,299,974.12
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Solution
The fourth proportional to 2,114,678.09, 2,919,772.34 and 1,299,974.12 is: 1,794,896.58
Step by Step Solution
- Step 1: Write the proportion equation
2,114,678.09 : 2,919,772.34 = 1,299,974.12 : x - Step 2: Convert to fraction form
2,114,678.09/2,919,772.34 = 1,299,974.12/x - Step 3: Cross multiply
2,114,678.09x = 2,919,772.34 × 1,299,974.12 - Step 4: Simplify right side
2,114,678.09x = 3,795,628,457,193.11 - Step 5: Solve for x
x = 3,795,628,457,193.11/2,114,678.09 - Step 6: Final answer
x = 1,794,896.58
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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.