Finding the Fourth Proportional to 3,211,947.68, 4,432,650.18 and 1,761,778.05
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Solution
The fourth proportional to 3,211,947.68, 4,432,650.18 and 1,761,778.05 is: 2,431,342.77
Step by Step Solution
- Step 1: Write the proportion equation
3,211,947.68 : 4,432,650.18 = 1,761,778.05 : x - Step 2: Convert to fraction form
3,211,947.68/4,432,650.18 = 1,761,778.05/x - Step 3: Cross multiply
3,211,947.68x = 4,432,650.18 × 1,761,778.05 - Step 4: Simplify right side
3,211,947.68x = 7,809,345,767,223.44 - Step 5: Solve for x
x = 7,809,345,767,223.44/3,211,947.68 - Step 6: Final answer
x = 2,431,342.77
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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.