Finding the Fourth Proportional to 1,899,378.12, 2,621,141.94 and 1,039,938.44
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Solution
The fourth proportional to 1,899,378.12, 2,621,141.94 and 1,039,938.44 is: 1,435,115.12
Step by Step Solution
- Step 1: Write the proportion equation
1,899,378.12 : 2,621,141.94 = 1,039,938.44 : x - Step 2: Convert to fraction form
1,899,378.12/2,621,141.94 = 1,039,938.44/x - Step 3: Cross multiply
1,899,378.12x = 2,621,141.94 × 1,039,938.44 - Step 4: Simplify right side
1,899,378.12x = 2,725,826,260,102.17 - Step 5: Solve for x
x = 2,725,826,260,102.17/1,899,378.12 - Step 6: Final answer
x = 1,435,115.12
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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.