Finding the Fourth Proportional to 1,408,439.50, 2,112,879.12 and 449,110.12
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Solution
The fourth proportional to 1,408,439.50, 2,112,879.12 and 449,110.12 is: 673,735.29
Step by Step Solution
- Step 1: Write the proportion equation
1,408,439.50 : 2,112,879.12 = 449,110.12 : x - Step 2: Convert to fraction form
1,408,439.50/2,112,879.12 = 449,110.12/x - Step 3: Cross multiply
1,408,439.50x = 2,112,879.12 × 449,110.12 - Step 4: Simplify right side
1,408,439.50x = 948,915,395,128.70 - Step 5: Solve for x
x = 948,915,395,128.70/1,408,439.50 - Step 6: Final answer
x = 673,735.29
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1.5x scale
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.