Finding the Fourth Proportional to 738,138.10, 1,107,207.15 and 731,139.70
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Solution
The fourth proportional to 738,138.10, 1,107,207.15 and 731,139.70 is: 1,096,709.55
Step by Step Solution
- Step 1: Write the proportion equation
738,138.10 : 1,107,207.15 = 731,139.70 : x - Step 2: Convert to fraction form
738,138.10/1,107,207.15 = 731,139.70/x - Step 3: Cross multiply
738,138.10x = 1,107,207.15 × 731,139.70 - Step 4: Simplify right side
738,138.10x = 809,523,103,488.86 - Step 5: Solve for x
x = 809,523,103,488.86/738,138.10 - Step 6: Final answer
x = 1,096,709.55
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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.