Finding the Fourth Proportional to 806,789.21, 1,209,432.04 and 273,945.79
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Solution
The fourth proportional to 806,789.21, 1,209,432.04 and 273,945.79 is: 410,663.42
Step by Step Solution
- Step 1: Write the proportion equation
806,789.21 : 1,209,432.04 = 273,945.79 : x - Step 2: Convert to fraction form
806,789.21/1,209,432.04 = 273,945.79/x - Step 3: Cross multiply
806,789.21x = 1,209,432.04 × 273,945.79 - Step 4: Simplify right side
806,789.21x = 331,318,815,649.11 - Step 5: Solve for x
x = 331,318,815,649.11/806,789.21 - Step 6: Final answer
x = 410,663.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.