Finding the Fourth Proportional to 812,466.96, 1,121,190.68 and 449,882.96
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Solution
The fourth proportional to 812,466.96, 1,121,190.68 and 449,882.96 is: 620,830.89
Step by Step Solution
- Step 1: Write the proportion equation
812,466.96 : 1,121,190.68 = 449,882.96 : x - Step 2: Convert to fraction form
812,466.96/1,121,190.68 = 449,882.96/x - Step 3: Cross multiply
812,466.96x = 1,121,190.68 × 449,882.96 - Step 4: Simplify right side
812,466.96x = 504,404,581,842.81 - Step 5: Solve for x
x = 504,404,581,842.81/812,466.96 - Step 6: Final answer
x = 620,830.89
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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.