Finding the Fourth Proportional to 812,472.96, 1,121,181.84 and 449,868
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Solution
The fourth proportional to 812,472.96, 1,121,181.84 and 449,868 is: 620,800.76
Step by Step Solution
- Step 1: Write the proportion equation
812,472.96 : 1,121,181.84 = 449,868 : x - Step 2: Convert to fraction form
812,472.96/1,121,181.84 = 449,868/x - Step 3: Cross multiply
812,472.96x = 1,121,181.84 × 449,868 - Step 4: Simplify right side
812,472.96x = 504,383,831,997.12 - Step 5: Solve for x
x = 504,383,831,997.12/812,472.96 - Step 6: Final answer
x = 620,800.76
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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.