Finding the Fourth Proportional to 2,894,606.97, 3,991,943.70 and 1,806,979.47
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Solution
The fourth proportional to 2,894,606.97, 3,991,943.70 and 1,806,979.47 is: 2,491,999.91
Step by Step Solution
- Step 1: Write the proportion equation
2,894,606.97 : 3,991,943.70 = 1,806,979.47 : x - Step 2: Convert to fraction form
2,894,606.97/3,991,943.70 = 1,806,979.47/x - Step 3: Cross multiply
2,894,606.97x = 3,991,943.70 × 1,806,979.47 - Step 4: Simplify right side
2,894,606.97x = 7,213,360,311,295.84 - Step 5: Solve for x
x = 7,213,360,311,295.84/2,894,606.97 - Step 6: Final answer
x = 2,491,999.91
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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.