Finding the Fourth Proportional to 1,331,251.68, 1,837,128.24 and 727,639.68
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Solution
The fourth proportional to 1,331,251.68, 1,837,128.24 and 727,639.68 is: 1,004,143.26
Step by Step Solution
- Step 1: Write the proportion equation
1,331,251.68 : 1,837,128.24 = 727,639.68 : x - Step 2: Convert to fraction form
1,331,251.68/1,837,128.24 = 727,639.68/x - Step 3: Cross multiply
1,331,251.68x = 1,837,128.24 × 727,639.68 - Step 4: Simplify right side
1,331,251.68x = 1,336,767,404,672.56 - Step 5: Solve for x
x = 1,336,767,404,672.56/1,331,251.68 - Step 6: Final answer
x = 1,004,143.26
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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.