Finding the Fourth Proportional to 1,408,438.50, 2,112,877.62 and 449,109.12
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Solution
The fourth proportional to 1,408,438.50, 2,112,877.62 and 449,109.12 is: 673,733.79
Step by Step Solution
- Step 1: Write the proportion equation
1,408,438.50 : 2,112,877.62 = 449,109.12 : x - Step 2: Convert to fraction form
1,408,438.50/2,112,877.62 = 449,109.12/x - Step 3: Cross multiply
1,408,438.50x = 2,112,877.62 × 449,109.12 - Step 4: Simplify right side
1,408,438.50x = 948,912,608,585.89 - Step 5: Solve for x
x = 948,912,608,585.89/1,408,438.50 - Step 6: Final answer
x = 673,733.79
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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.