Finding the Fourth Proportional to 489,226.18, 675,161.58 and 274,378.96
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Solution
The fourth proportional to 489,226.18, 675,161.58 and 274,378.96 is: 378,659.48
Step by Step Solution
- Step 1: Write the proportion equation
489,226.18 : 675,161.58 = 274,378.96 : x - Step 2: Convert to fraction form
489,226.18/675,161.58 = 274,378.96/x - Step 3: Cross multiply
489,226.18x = 675,161.58 × 274,378.96 - Step 4: Simplify right side
489,226.18x = 185,250,132,152.36 - Step 5: Solve for x
x = 185,250,132,152.36/489,226.18 - Step 6: Final answer
x = 378,659.48
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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.