Finding the Fourth Proportional to 1,159,372.80, 1,738,249.20 and 685,814.40
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Solution
The fourth proportional to 1,159,372.80, 1,738,249.20 and 685,814.40 is: 1,028,242.45
Step by Step Solution
- Step 1: Write the proportion equation
1,159,372.80 : 1,738,249.20 = 685,814.40 : x - Step 2: Convert to fraction form
1,159,372.80/1,738,249.20 = 685,814.40/x - Step 3: Cross multiply
1,159,372.80x = 1,738,249.20 × 685,814.40 - Step 4: Simplify right side
1,159,372.80x = 1,192,116,332,148.48 - Step 5: Solve for x
x = 1,192,116,332,148.48/1,159,372.80 - Step 6: Final answer
x = 1,028,242.45
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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.