Finding the Fourth Proportional to 768,391.57, 1,149,732.78 and 482,744.80
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Solution
The fourth proportional to 768,391.57, 1,149,732.78 and 482,744.80 is: 722,323.80
Step by Step Solution
- Step 1: Write the proportion equation
768,391.57 : 1,149,732.78 = 482,744.80 : x - Step 2: Convert to fraction form
768,391.57/1,149,732.78 = 482,744.80/x - Step 3: Cross multiply
768,391.57x = 1,149,732.78 × 482,744.80 - Step 4: Simplify right side
768,391.57x = 555,027,520,934.54 - Step 5: Solve for x
x = 555,027,520,934.54/768,391.57 - Step 6: Final answer
x = 722,323.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.