Finding the Fourth Proportional to 2,831,689.22, 3,907,439.80 and 1,591,102.53
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Solution
The fourth proportional to 2,831,689.22, 3,907,439.80 and 1,591,102.53 is: 2,195,557.80
Step by Step Solution
- Step 1: Write the proportion equation
2,831,689.22 : 3,907,439.80 = 1,591,102.53 : x - Step 2: Convert to fraction form
2,831,689.22/3,907,439.80 = 1,591,102.53/x - Step 3: Cross multiply
2,831,689.22x = 3,907,439.80 × 1,591,102.53 - Step 4: Simplify right side
2,831,689.22x = 6,217,137,347,624.94 - Step 5: Solve for x
x = 6,217,137,347,624.94/2,831,689.22 - Step 6: Final answer
x = 2,195,557.80
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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.