Finding the Fourth Proportional to 863,639.07, 1,293,723.68 and 430,050.26
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Solution
The fourth proportional to 863,639.07, 1,293,723.68 and 430,050.26 is: 644,211.47
Step by Step Solution
- Step 1: Write the proportion equation
863,639.07 : 1,293,723.68 = 430,050.26 : x - Step 2: Convert to fraction form
863,639.07/1,293,723.68 = 430,050.26/x - Step 3: Cross multiply
863,639.07x = 1,293,723.68 × 430,050.26 - Step 4: Simplify right side
863,639.07x = 556,366,196,333.29 - Step 5: Solve for x
x = 556,366,196,333.29/863,639.07 - Step 6: Final answer
x = 644,211.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.