Finding the Fourth Proportional to 440,839.71, 608,252.36 and 279,636.21
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Solution
The fourth proportional to 440,839.71, 608,252.36 and 279,636.21 is: 385,830.45
Step by Step Solution
- Step 1: Write the proportion equation
440,839.71 : 608,252.36 = 279,636.21 : x - Step 2: Convert to fraction form
440,839.71/608,252.36 = 279,636.21/x - Step 3: Cross multiply
440,839.71x = 608,252.36 × 279,636.21 - Step 4: Simplify right side
440,839.71x = 170,089,383,275.78 - Step 5: Solve for x
x = 170,089,383,275.78/440,839.71 - Step 6: Final answer
x = 385,830.45
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1.5x scale
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.