Finding the Fourth Proportional to 1,338,378.24, 2,007,261.12 and 798,786.88
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Solution
The fourth proportional to 1,338,378.24, 2,007,261.12 and 798,786.88 is: 1,197,997.55
Step by Step Solution
- Step 1: Write the proportion equation
1,338,378.24 : 2,007,261.12 = 798,786.88 : x - Step 2: Convert to fraction form
1,338,378.24/2,007,261.12 = 798,786.88/x - Step 3: Cross multiply
1,338,378.24x = 2,007,261.12 × 798,786.88 - Step 4: Simplify right side
1,338,378.24x = 1,603,373,847,390.11 - Step 5: Solve for x
x = 1,603,373,847,390.11/1,338,378.24 - Step 6: Final answer
x = 1,197,997.55
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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.