Finding the Fourth Proportional to 2,868,774.28, 3,958,995.61 and 1,579,660.80
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Solution
The fourth proportional to 2,868,774.28, 3,958,995.61 and 1,579,660.80 is: 2,179,979.87
Step by Step Solution
- Step 1: Write the proportion equation
2,868,774.28 : 3,958,995.61 = 1,579,660.80 : x - Step 2: Convert to fraction form
2,868,774.28/3,958,995.61 = 1,579,660.80/x - Step 3: Cross multiply
2,868,774.28x = 3,958,995.61 × 1,579,660.80 - Step 4: Simplify right side
2,868,774.28x = 6,253,870,172,489.09 - Step 5: Solve for x
x = 6,253,870,172,489.09/2,868,774.28 - Step 6: Final answer
x = 2,179,979.87
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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.