Finding the Fourth Proportional to 748,607.76, 1,122,951.96 and 299,396.88
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Solution
The fourth proportional to 748,607.76, 1,122,951.96 and 299,396.88 is: 449,111.45
Step by Step Solution
- Step 1: Write the proportion equation
748,607.76 : 1,122,951.96 = 299,396.88 : x - Step 2: Convert to fraction form
748,607.76/1,122,951.96 = 299,396.88/x - Step 3: Cross multiply
748,607.76x = 1,122,951.96 × 299,396.88 - Step 4: Simplify right side
748,607.76x = 336,208,313,213.89 - Step 5: Solve for x
x = 336,208,313,213.89/748,607.76 - Step 6: Final answer
x = 449,111.45
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1.5x scale
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.