Finding the Fourth Proportional to 3,192,339.76, 4,405,522.58 and 1,742,128.80
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Solution
The fourth proportional to 3,192,339.76, 4,405,522.58 and 1,742,128.80 is: 2,404,188.88
Step by Step Solution
- Step 1: Write the proportion equation
3,192,339.76 : 4,405,522.58 = 1,742,128.80 : x - Step 2: Convert to fraction form
3,192,339.76/4,405,522.58 = 1,742,128.80/x - Step 3: Cross multiply
3,192,339.76x = 4,405,522.58 × 1,742,128.80 - Step 4: Simplify right side
3,192,339.76x = 7,674,987,765,668.31 - Step 5: Solve for x
x = 7,674,987,765,668.31/3,192,339.76 - Step 6: Final answer
x = 2,404,188.88
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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.