Finding the Fourth Proportional to 812,183.49, 1,120,826.43 and 444,654.42
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Solution
The fourth proportional to 812,183.49, 1,120,826.43 and 444,654.42 is: 613,630.33
Step by Step Solution
- Step 1: Write the proportion equation
812,183.49 : 1,120,826.43 = 444,654.42 : x - Step 2: Convert to fraction form
812,183.49/1,120,826.43 = 444,654.42/x - Step 3: Cross multiply
812,183.49x = 1,120,826.43 × 444,654.42 - Step 4: Simplify right side
812,183.49x = 498,380,423,929.05 - Step 5: Solve for x
x = 498,380,423,929.05/812,183.49 - Step 6: Final answer
x = 613,630.33
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1.5x scale
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.