Finding the Fourth Proportional to 1,909,464.40, 2,634,415.90 and 1,082,449.24
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Solution
The fourth proportional to 1,909,464.40, 2,634,415.90 and 1,082,449.24 is: 1,493,414.32
Step by Step Solution
- Step 1: Write the proportion equation
1,909,464.40 : 2,634,415.90 = 1,082,449.24 : x - Step 2: Convert to fraction form
1,909,464.40/2,634,415.90 = 1,082,449.24/x - Step 3: Cross multiply
1,909,464.40x = 2,634,415.90 × 1,082,449.24 - Step 4: Simplify right side
1,909,464.40x = 2,851,621,485,595.53 - Step 5: Solve for x
x = 2,851,621,485,595.53/1,909,464.40 - Step 6: Final answer
x = 1,493,414.32
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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.