Finding the Fourth Proportional to 3,192,308.80, 4,405,479.62 and 1,742,097.68
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Solution
The fourth proportional to 3,192,308.80, 4,405,479.62 and 1,742,097.68 is: 2,404,145.81
Step by Step Solution
- Step 1: Write the proportion equation
3,192,308.80 : 4,405,479.62 = 1,742,097.68 : x - Step 2: Convert to fraction form
3,192,308.80/4,405,479.62 = 1,742,097.68/x - Step 3: Cross multiply
3,192,308.80x = 4,405,479.62 × 1,742,097.68 - Step 4: Simplify right side
3,192,308.80x = 7,674,775,825,289.28 - Step 5: Solve for x
x = 7,674,775,825,289.28/3,192,308.80 - Step 6: Final answer
x = 2,404,145.81
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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.