Finding the Fourth Proportional to 1,381,793.13, 2,072,689.68 and 539,754.39
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Solution
The fourth proportional to 1,381,793.13, 2,072,689.68 and 539,754.39 is: 809,631.58
Step by Step Solution
- Step 1: Write the proportion equation
1,381,793.13 : 2,072,689.68 = 539,754.39 : x - Step 2: Convert to fraction form
1,381,793.13/2,072,689.68 = 539,754.39/x - Step 3: Cross multiply
1,381,793.13x = 2,072,689.68 × 539,754.39 - Step 4: Simplify right side
1,381,793.13x = 1,118,743,353,887.70 - Step 5: Solve for x
x = 1,118,743,353,887.70/1,381,793.13 - Step 6: Final answer
x = 809,631.58
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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.