Finding the Fourth Proportional to 3,782,487.94, 5,219,620.63 and 2,151,292.12
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Solution
The fourth proportional to 3,782,487.94, 5,219,620.63 and 2,151,292.12 is: 2,968,662.14
Step by Step Solution
- Step 1: Write the proportion equation
3,782,487.94 : 5,219,620.63 = 2,151,292.12 : x - Step 2: Convert to fraction form
3,782,487.94/5,219,620.63 = 2,151,292.12/x - Step 3: Cross multiply
3,782,487.94x = 5,219,620.63 × 2,151,292.12 - Step 4: Simplify right side
3,782,487.94x = 11,228,928,730,708.44 - Step 5: Solve for x
x = 11,228,928,730,708.44/3,782,487.94 - Step 6: Final answer
x = 2,968,662.14
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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.