Finding the Fourth Proportional to 1,489,743.80, 2,234,615.70 and 492,471.80
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Solution
The fourth proportional to 1,489,743.80, 2,234,615.70 and 492,471.80 is: 738,707.70
Step by Step Solution
- Step 1: Write the proportion equation
1,489,743.80 : 2,234,615.70 = 492,471.80 : x - Step 2: Convert to fraction form
1,489,743.80/2,234,615.70 = 492,471.80/x - Step 3: Cross multiply
1,489,743.80x = 2,234,615.70 × 492,471.80 - Step 4: Simplify right side
1,489,743.80x = 1,100,485,216,087.26 - Step 5: Solve for x
x = 1,100,485,216,087.26/1,489,743.80 - Step 6: Final answer
x = 738,707.70
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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.