Finding the Fourth Proportional to 2,209,907.80, 3,313,112.10 and 1,212,635.80
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Solution
The fourth proportional to 2,209,907.80, 3,313,112.10 and 1,212,635.80 is: 1,817,993.65
Step by Step Solution
- Step 1: Write the proportion equation
2,209,907.80 : 3,313,112.10 = 1,212,635.80 : x - Step 2: Convert to fraction form
2,209,907.80/3,313,112.10 = 1,212,635.80/x - Step 3: Cross multiply
2,209,907.80x = 3,313,112.10 × 1,212,635.80 - Step 4: Simplify right side
2,209,907.80x = 4,017,598,341,873.18 - Step 5: Solve for x
x = 4,017,598,341,873.18/2,209,907.80 - Step 6: Final answer
x = 1,817,993.65
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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.