Finding the Fourth Proportional to 768,786.19, 1,153,289.56 and 236,351.93
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Solution
The fourth proportional to 768,786.19, 1,153,289.56 and 236,351.93 is: 354,561.80
Step by Step Solution
- Step 1: Write the proportion equation
768,786.19 : 1,153,289.56 = 236,351.93 : x - Step 2: Convert to fraction form
768,786.19/1,153,289.56 = 236,351.93/x - Step 3: Cross multiply
768,786.19x = 1,153,289.56 × 236,351.93 - Step 4: Simplify right side
768,786.19x = 272,582,213,354.85 - Step 5: Solve for x
x = 272,582,213,354.85/768,786.19 - Step 6: Final answer
x = 354,561.80
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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.