Finding the Fourth Proportional to 812,353.24, 1,121,082.50 and 449,777.09
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Solution
The fourth proportional to 812,353.24, 1,121,082.50 and 449,777.09 is: 620,711.78
Step by Step Solution
- Step 1: Write the proportion equation
812,353.24 : 1,121,082.50 = 449,777.09 : x - Step 2: Convert to fraction form
812,353.24/1,121,082.50 = 449,777.09/x - Step 3: Cross multiply
812,353.24x = 1,121,082.50 × 449,777.09 - Step 4: Simplify right side
812,353.24x = 504,237,224,499.93 - Step 5: Solve for x
x = 504,237,224,499.93/812,353.24 - Step 6: Final answer
x = 620,711.78
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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.