Finding the Fourth Proportional to 460,961.28, 691,440.40 and 214,460.26
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Solution
The fourth proportional to 460,961.28, 691,440.40 and 214,460.26 is: 321,689.68
Step by Step Solution
- Step 1: Write the proportion equation
460,961.28 : 691,440.40 = 214,460.26 : x - Step 2: Convert to fraction form
460,961.28/691,440.40 = 214,460.26/x - Step 3: Cross multiply
460,961.28x = 691,440.40 × 214,460.26 - Step 4: Simplify right side
460,961.28x = 148,286,486,497.98 - Step 5: Solve for x
x = 148,286,486,497.98/460,961.28 - Step 6: Final answer
x = 321,689.68
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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.