Finding the Fourth Proportional to 2,112,418.80, 3,163,460.58 and 1,907,715.60
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Solution
The fourth proportional to 2,112,418.80, 3,163,460.58 and 1,907,715.60 is: 2,856,906.55
Step by Step Solution
- Step 1: Write the proportion equation
2,112,418.80 : 3,163,460.58 = 1,907,715.60 : x - Step 2: Convert to fraction form
2,112,418.80/3,163,460.58 = 1,907,715.60/x - Step 3: Cross multiply
2,112,418.80x = 3,163,460.58 × 1,907,715.60 - Step 4: Simplify right side
2,112,418.80x = 6,034,983,098,451.05 - Step 5: Solve for x
x = 6,034,983,098,451.05/2,112,418.80 - Step 6: Final answer
x = 2,856,906.55
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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.