Finding the Fourth Proportional to 1,208,138.55, 1,667,186.36 and 664,241.98
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Solution
The fourth proportional to 1,208,138.55, 1,667,186.36 and 664,241.98 is: 916,629.28
Step by Step Solution
- Step 1: Write the proportion equation
1,208,138.55 : 1,667,186.36 = 664,241.98 : x - Step 2: Convert to fraction form
1,208,138.55/1,667,186.36 = 664,241.98/x - Step 3: Cross multiply
1,208,138.55x = 1,667,186.36 × 664,241.98 - Step 4: Simplify right side
1,208,138.55x = 1,107,415,168,795.39 - Step 5: Solve for x
x = 1,107,415,168,795.39/1,208,138.55 - Step 6: Final answer
x = 916,629.28
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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.