Finding the Fourth Proportional to 753,086.70, 1,129,630.05 and 254,450.70
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Solution
The fourth proportional to 753,086.70, 1,129,630.05 and 254,450.70 is: 381,676.05
Step by Step Solution
- Step 1: Write the proportion equation
753,086.70 : 1,129,630.05 = 254,450.70 : x - Step 2: Convert to fraction form
753,086.70/1,129,630.05 = 254,450.70/x - Step 3: Cross multiply
753,086.70x = 1,129,630.05 × 254,450.70 - Step 4: Simplify right side
753,086.70x = 287,435,156,963.54 - Step 5: Solve for x
x = 287,435,156,963.54/753,086.70 - Step 6: Final answer
x = 381,676.05
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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.