Finding the Fourth Proportional to 814,231.20, 1,221,346.80 and 739,435.80
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Solution
The fourth proportional to 814,231.20, 1,221,346.80 and 739,435.80 is: 1,109,153.70
Step by Step Solution
- Step 1: Write the proportion equation
814,231.20 : 1,221,346.80 = 739,435.80 : x - Step 2: Convert to fraction form
814,231.20/1,221,346.80 = 739,435.80/x - Step 3: Cross multiply
814,231.20x = 1,221,346.80 × 739,435.80 - Step 4: Simplify right side
814,231.20x = 903,107,548,135.44 - Step 5: Solve for x
x = 903,107,548,135.44/814,231.20 - Step 6: Final answer
x = 1,109,153.70
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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.