Finding the Fourth Proportional to 2,268,879.12, 3,130,905.60 and 1,250,283.78
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Solution
The fourth proportional to 2,268,879.12, 3,130,905.60 and 1,250,283.78 is: 1,725,310.29
Step by Step Solution
- Step 1: Write the proportion equation
2,268,879.12 : 3,130,905.60 = 1,250,283.78 : x - Step 2: Convert to fraction form
2,268,879.12/3,130,905.60 = 1,250,283.78/x - Step 3: Cross multiply
2,268,879.12x = 3,130,905.60 × 1,250,283.78 - Step 4: Simplify right side
2,268,879.12x = 3,914,520,488,391.17 - Step 5: Solve for x
x = 3,914,520,488,391.17/2,268,879.12 - Step 6: Final answer
x = 1,725,310.29
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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.