Finding the Fourth Proportional to 1,994,949.12, 2,751,206.40 and 1,559,424
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Solution
The fourth proportional to 1,994,949.12, 2,751,206.40 and 1,559,424 is: 2,150,579.80
Step by Step Solution
- Step 1: Write the proportion equation
1,994,949.12 : 2,751,206.40 = 1,559,424 : x - Step 2: Convert to fraction form
1,994,949.12/2,751,206.40 = 1,559,424/x - Step 3: Cross multiply
1,994,949.12x = 2,751,206.40 × 1,559,424 - Step 4: Simplify right side
1,994,949.12x = 4,290,297,289,113.60 - Step 5: Solve for x
x = 4,290,297,289,113.60/1,994,949.12 - Step 6: Final answer
x = 2,150,579.80
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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.