Finding the Fourth Proportional to 1,539,942.12, 2,310,306.84 and 641,085.12
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Solution
The fourth proportional to 1,539,942.12, 2,310,306.84 and 641,085.12 is: 961,791.56
Step by Step Solution
- Step 1: Write the proportion equation
1,539,942.12 : 2,310,306.84 = 641,085.12 : x - Step 2: Convert to fraction form
1,539,942.12/2,310,306.84 = 641,085.12/x - Step 3: Cross multiply
1,539,942.12x = 2,310,306.84 × 641,085.12 - Step 4: Simplify right side
1,539,942.12x = 1,481,103,337,758.22 - Step 5: Solve for x
x = 1,481,103,337,758.22/1,539,942.12 - Step 6: Final answer
x = 961,791.56
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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.