Finding the Fourth Proportional to 738,205.80, 1,107,308.70 and 620,107.80
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Solution
The fourth proportional to 738,205.80, 1,107,308.70 and 620,107.80 is: 930,161.70
Step by Step Solution
- Step 1: Write the proportion equation
738,205.80 : 1,107,308.70 = 620,107.80 : x - Step 2: Convert to fraction form
738,205.80/1,107,308.70 = 620,107.80/x - Step 3: Cross multiply
738,205.80x = 1,107,308.70 × 620,107.80 - Step 4: Simplify right side
738,205.80x = 686,650,761,877.86 - Step 5: Solve for x
x = 686,650,761,877.86/738,205.80 - Step 6: Final answer
x = 930,161.70
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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.