Finding the Fourth Proportional to 2,938,912.40, 4,408,368.60 and 809,325.20
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Solution
The fourth proportional to 2,938,912.40, 4,408,368.60 and 809,325.20 is: 1,213,987.80
Step by Step Solution
- Step 1: Write the proportion equation
2,938,912.40 : 4,408,368.60 = 809,325.20 : x - Step 2: Convert to fraction form
2,938,912.40/4,408,368.60 = 809,325.20/x - Step 3: Cross multiply
2,938,912.40x = 4,408,368.60 × 809,325.20 - Step 4: Simplify right side
2,938,912.40x = 3,567,803,798,868.72 - Step 5: Solve for x
x = 3,567,803,798,868.72/2,938,912.40 - Step 6: Final answer
x = 1,213,987.80
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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.