Finding the Fourth Proportional to 2,979,278.22, 4,463,278.92 and 1,761,208.05
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Solution
The fourth proportional to 2,979,278.22, 4,463,278.92 and 1,761,208.05 is: 2,638,478.91
Step by Step Solution
- Step 1: Write the proportion equation
2,979,278.22 : 4,463,278.92 = 1,761,208.05 : x - Step 2: Convert to fraction form
2,979,278.22/4,463,278.92 = 1,761,208.05/x - Step 3: Cross multiply
2,979,278.22x = 4,463,278.92 × 1,761,208.05 - Step 4: Simplify right side
2,979,278.22x = 7,860,762,763,299.31 - Step 5: Solve for x
x = 7,860,762,763,299.31/2,979,278.22 - Step 6: Final answer
x = 2,638,478.91
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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.