Finding the Fourth Proportional to 2,640,141.44, 3,643,397.52 and 1,432,917.44
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Solution
The fourth proportional to 2,640,141.44, 3,643,397.52 and 1,432,917.44 is: 1,977,427.33
Step by Step Solution
- Step 1: Write the proportion equation
2,640,141.44 : 3,643,397.52 = 1,432,917.44 : x - Step 2: Convert to fraction form
2,640,141.44/3,643,397.52 = 1,432,917.44/x - Step 3: Cross multiply
2,640,141.44x = 3,643,397.52 × 1,432,917.44 - Step 4: Simplify right side
2,640,141.44x = 5,220,687,847,260.75 - Step 5: Solve for x
x = 5,220,687,847,260.75/2,640,141.44 - Step 6: Final answer
x = 1,977,427.33
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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.