Finding the Fourth Proportional to 3,491,743.20, 4,815,875.81 and 2,268,442.87
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Solution
The fourth proportional to 3,491,743.20, 4,815,875.81 and 2,268,442.87 is: 3,128,677.72
Step by Step Solution
- Step 1: Write the proportion equation
3,491,743.20 : 4,815,875.81 = 2,268,442.87 : x - Step 2: Convert to fraction form
3,491,743.20/4,815,875.81 = 2,268,442.87/x - Step 3: Cross multiply
3,491,743.20x = 4,815,875.81 × 2,268,442.87 - Step 4: Simplify right side
3,491,743.20x = 10,924,539,124,871.40 - Step 5: Solve for x
x = 10,924,539,124,871.40/3,491,743.20 - Step 6: Final answer
x = 3,128,677.72
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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.