Finding the Fourth Proportional to 2,232,619.20, 3,080,979.36 and 1,214,015.04
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Solution
The fourth proportional to 2,232,619.20, 3,080,979.36 and 1,214,015.04 is: 1,675,321.65
Step by Step Solution
- Step 1: Write the proportion equation
2,232,619.20 : 3,080,979.36 = 1,214,015.04 : x - Step 2: Convert to fraction form
2,232,619.20/3,080,979.36 = 1,214,015.04/x - Step 3: Cross multiply
2,232,619.20x = 3,080,979.36 × 1,214,015.04 - Step 4: Simplify right side
2,232,619.20x = 3,740,355,280,969.57 - Step 5: Solve for x
x = 3,740,355,280,969.57/2,232,619.20 - Step 6: Final answer
x = 1,675,321.65
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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.