Finding the Fourth Proportional to 449,618.24, 619,310.08 and 313,409.28
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Solution
The fourth proportional to 449,618.24, 619,310.08 and 313,409.28 is: 431,694.07
Step by Step Solution
- Step 1: Write the proportion equation
449,618.24 : 619,310.08 = 313,409.28 : x - Step 2: Convert to fraction form
449,618.24/619,310.08 = 313,409.28/x - Step 3: Cross multiply
449,618.24x = 619,310.08 × 313,409.28 - Step 4: Simplify right side
449,618.24x = 194,097,526,269.54 - Step 5: Solve for x
x = 194,097,526,269.54/449,618.24 - Step 6: Final answer
x = 431,694.07
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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.