Finding the Fourth Proportional to 2,131,467.12, 3,198,778.56 and 1,009,539.36
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Solution
The fourth proportional to 2,131,467.12, 3,198,778.56 and 1,009,539.36 is: 1,515,056.38
Step by Step Solution
- Step 1: Write the proportion equation
2,131,467.12 : 3,198,778.56 = 1,009,539.36 : x - Step 2: Convert to fraction form
2,131,467.12/3,198,778.56 = 1,009,539.36/x - Step 3: Cross multiply
2,131,467.12x = 3,198,778.56 × 1,009,539.36 - Step 4: Simplify right side
2,131,467.12x = 3,229,292,860,244.12 - Step 5: Solve for x
x = 3,229,292,860,244.12/2,131,467.12 - Step 6: Final answer
x = 1,515,056.38
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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.