Finding the Fourth Proportional to 3,106,878.94, 4,289,170.41 and 2,179,428.28
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Solution
The fourth proportional to 3,106,878.94, 4,289,170.41 and 2,179,428.28 is: 3,008,787.75
Step by Step Solution
- Step 1: Write the proportion equation
3,106,878.94 : 4,289,170.41 = 2,179,428.28 : x - Step 2: Convert to fraction form
3,106,878.94/4,289,170.41 = 2,179,428.28/x - Step 3: Cross multiply
3,106,878.94x = 4,289,170.41 × 2,179,428.28 - Step 4: Simplify right side
3,106,878.94x = 9,347,939,289,293.19 - Step 5: Solve for x
x = 9,347,939,289,293.19/3,106,878.94 - Step 6: Final answer
x = 3,008,787.75
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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.