Finding the Fourth Proportional to 535,115.74, 738,431.43 and 305,627.92
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Solution
The fourth proportional to 535,115.74, 738,431.43 and 305,627.92 is: 421,750.37
Step by Step Solution
- Step 1: Write the proportion equation
535,115.74 : 738,431.43 = 305,627.92 : x - Step 2: Convert to fraction form
535,115.74/738,431.43 = 305,627.92/x - Step 3: Cross multiply
535,115.74x = 738,431.43 × 305,627.92 - Step 4: Simplify right side
535,115.74x = 225,685,262,013.53 - Step 5: Solve for x
x = 225,685,262,013.53/535,115.74 - Step 6: Final answer
x = 421,750.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.