Finding the Fourth Proportional to 2,160,163.32, 2,980,769.88 and 1,193,235.60
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Solution
The fourth proportional to 2,160,163.32, 2,980,769.88 and 1,193,235.60 is: 1,646,523.99
Step by Step Solution
- Step 1: Write the proportion equation
2,160,163.32 : 2,980,769.88 = 1,193,235.60 : x - Step 2: Convert to fraction form
2,160,163.32/2,980,769.88 = 1,193,235.60/x - Step 3: Cross multiply
2,160,163.32x = 2,980,769.88 × 1,193,235.60 - Step 4: Simplify right side
2,160,163.32x = 3,556,760,736,223.73 - Step 5: Solve for x
x = 3,556,760,736,223.73/2,160,163.32 - Step 6: Final answer
x = 1,646,523.99
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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.