Finding the Fourth Proportional to 1,394,511.60, 2,093,149.80 and 685,340.40
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Solution
The fourth proportional to 1,394,511.60, 2,093,149.80 and 685,340.40 is: 1,028,689.99
Step by Step Solution
- Step 1: Write the proportion equation
1,394,511.60 : 2,093,149.80 = 685,340.40 : x - Step 2: Convert to fraction form
1,394,511.60/2,093,149.80 = 685,340.40/x - Step 3: Cross multiply
1,394,511.60x = 2,093,149.80 × 685,340.40 - Step 4: Simplify right side
1,394,511.60x = 1,434,520,121,191.92 - Step 5: Solve for x
x = 1,434,520,121,191.92/1,394,511.60 - Step 6: Final answer
x = 1,028,689.99
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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.