Finding the Fourth Proportional to 2,115,218.88, 3,171,636 and 694,893.60
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Solution
The fourth proportional to 2,115,218.88, 3,171,636 and 694,893.60 is: 1,041,948.70
Step by Step Solution
- Step 1: Write the proportion equation
2,115,218.88 : 3,171,636 = 694,893.60 : x - Step 2: Convert to fraction form
2,115,218.88/3,171,636 = 694,893.60/x - Step 3: Cross multiply
2,115,218.88x = 3,171,636 × 694,893.60 - Step 4: Simplify right side
2,115,218.88x = 2,203,949,557,929.60 - Step 5: Solve for x
x = 2,203,949,557,929.60/2,115,218.88 - Step 6: Final answer
x = 1,041,948.70
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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.