Finding the Fourth Proportional to 671,516.76, 1,007,689.86 and 272,160.84
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Solution
The fourth proportional to 671,516.76, 1,007,689.86 and 272,160.84 is: 408,409.34
Step by Step Solution
- Step 1: Write the proportion equation
671,516.76 : 1,007,689.86 = 272,160.84 : x - Step 2: Convert to fraction form
671,516.76/1,007,689.86 = 272,160.84/x - Step 3: Cross multiply
671,516.76x = 1,007,689.86 × 272,160.84 - Step 4: Simplify right side
671,516.76x = 274,253,718,757.08 - Step 5: Solve for x
x = 274,253,718,757.08/671,516.76 - Step 6: Final answer
x = 408,409.34
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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.