Finding the Fourth Proportional to 391,736.53, 587,604.99 and 258,585.67
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Solution
The fourth proportional to 391,736.53, 587,604.99 and 258,585.67 is: 387,878.63
Step by Step Solution
- Step 1: Write the proportion equation
391,736.53 : 587,604.99 = 258,585.67 : x - Step 2: Convert to fraction form
391,736.53/587,604.99 = 258,585.67/x - Step 3: Cross multiply
391,736.53x = 587,604.99 × 258,585.67 - Step 4: Simplify right side
391,736.53x = 151,946,230,034.49 - Step 5: Solve for x
x = 151,946,230,034.49/391,736.53 - Step 6: Final answer
x = 387,878.63
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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.