Finding the Fourth Proportional to 918,858.21, 1,378,352.97 and 244,936.05
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Solution
The fourth proportional to 918,858.21, 1,378,352.97 and 244,936.05 is: 367,421.58
Step by Step Solution
- Step 1: Write the proportion equation
918,858.21 : 1,378,352.97 = 244,936.05 : x - Step 2: Convert to fraction form
918,858.21/1,378,352.97 = 244,936.05/x - Step 3: Cross multiply
918,858.21x = 1,378,352.97 × 244,936.05 - Step 4: Simplify right side
918,858.21x = 337,608,331,977.57 - Step 5: Solve for x
x = 337,608,331,977.57/918,858.21 - Step 6: Final answer
x = 367,421.58
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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.