Finding the Fourth Proportional to 3,555,789.40, 5,329,536.90 and 1,424,819.80
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Solution
The fourth proportional to 3,555,789.40, 5,329,536.90 and 1,424,819.80 is: 2,135,567.90
Step by Step Solution
- Step 1: Write the proportion equation
3,555,789.40 : 5,329,536.90 = 1,424,819.80 : x - Step 2: Convert to fraction form
3,555,789.40/5,329,536.90 = 1,424,819.80/x - Step 3: Cross multiply
3,555,789.40x = 5,329,536.90 × 1,424,819.80 - Step 4: Simplify right side
3,555,789.40x = 7,593,629,699,950.62 - Step 5: Solve for x
x = 7,593,629,699,950.62/3,555,789.40 - Step 6: Final answer
x = 2,135,567.90
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1.5x scale
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.