Finding the Fourth Proportional to 823,563.20, 1,235,344.80 and 350,129.60
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Solution
The fourth proportional to 823,563.20, 1,235,344.80 and 350,129.60 is: 525,194.40
Step by Step Solution
- Step 1: Write the proportion equation
823,563.20 : 1,235,344.80 = 350,129.60 : x - Step 2: Convert to fraction form
823,563.20/1,235,344.80 = 350,129.60/x - Step 3: Cross multiply
823,563.20x = 1,235,344.80 × 350,129.60 - Step 4: Simplify right side
823,563.20x = 432,530,780,686.08 - Step 5: Solve for x
x = 432,530,780,686.08/823,563.20 - Step 6: Final answer
x = 525,194.40
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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.