Finding the Fourth Proportional to 4,189,579.68, 5,781,660.56 and 2,378,784.16
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Solution
The fourth proportional to 4,189,579.68, 5,781,660.56 and 2,378,784.16 is: 3,282,745.19
Step by Step Solution
- Step 1: Write the proportion equation
4,189,579.68 : 5,781,660.56 = 2,378,784.16 : x - Step 2: Convert to fraction form
4,189,579.68/5,781,660.56 = 2,378,784.16/x - Step 3: Cross multiply
4,189,579.68x = 5,781,660.56 × 2,378,784.16 - Step 4: Simplify right side
4,189,579.68x = 13,753,322,558,624.73 - Step 5: Solve for x
x = 13,753,322,558,624.73/4,189,579.68 - Step 6: Final answer
x = 3,282,745.19
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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.