Finding the Fourth Proportional to 1,840,414.36, 2,539,181.10 and 1,115,030.20
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Solution
The fourth proportional to 1,840,414.36, 2,539,181.10 and 1,115,030.20 is: 1,538,383.79
Step by Step Solution
- Step 1: Write the proportion equation
1,840,414.36 : 2,539,181.10 = 1,115,030.20 : x - Step 2: Convert to fraction form
1,840,414.36/2,539,181.10 = 1,115,030.20/x - Step 3: Cross multiply
1,840,414.36x = 2,539,181.10 × 1,115,030.20 - Step 4: Simplify right side
1,840,414.36x = 2,831,263,609,769.22 - Step 5: Solve for x
x = 2,831,263,609,769.22/1,840,414.36 - Step 6: Final answer
x = 1,538,383.79
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1.5x scale
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.