Finding the Fourth Proportional to 727,620.37, 1,004,147.08 and 405,330.08
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Solution
The fourth proportional to 727,620.37, 1,004,147.08 and 405,330.08 is: 559,372.76
Step by Step Solution
- Step 1: Write the proportion equation
727,620.37 : 1,004,147.08 = 405,330.08 : x - Step 2: Convert to fraction form
727,620.37/1,004,147.08 = 405,330.08/x - Step 3: Cross multiply
727,620.37x = 1,004,147.08 × 405,330.08 - Step 4: Simplify right side
727,620.37x = 407,011,010,234.11 - Step 5: Solve for x
x = 407,011,010,234.11/727,620.37 - Step 6: Final answer
x = 559,372.76
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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.