Finding the Fourth Proportional to 665,329.41, 918,163.35 and 378,850.64
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Solution
The fourth proportional to 665,329.41, 918,163.35 and 378,850.64 is: 522,818.87
Step by Step Solution
- Step 1: Write the proportion equation
665,329.41 : 918,163.35 = 378,850.64 : x - Step 2: Convert to fraction form
665,329.41/918,163.35 = 378,850.64/x - Step 3: Cross multiply
665,329.41x = 918,163.35 × 378,850.64 - Step 4: Simplify right side
665,329.41x = 347,846,768,181.23 - Step 5: Solve for x
x = 347,846,768,181.23/665,329.41 - Step 6: Final answer
x = 522,818.87
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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.