Finding the Fourth Proportional to 499,440.62, 689,295.48 and 281,693.99
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Solution
The fourth proportional to 499,440.62, 689,295.48 and 281,693.99 is: 388,775.73
Step by Step Solution
- Step 1: Write the proportion equation
499,440.62 : 689,295.48 = 281,693.99 : x - Step 2: Convert to fraction form
499,440.62/689,295.48 = 281,693.99/x - Step 3: Cross multiply
499,440.62x = 689,295.48 × 281,693.99 - Step 4: Simplify right side
499,440.62x = 194,170,394,050.17 - Step 5: Solve for x
x = 194,170,394,050.17/499,440.62 - Step 6: Final answer
x = 388,775.73
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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.