Finding the Fourth Proportional to 422,228.88, 582,676.74 and 228,638.70
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Solution
The fourth proportional to 422,228.88, 582,676.74 and 228,638.70 is: 315,521.89
Step by Step Solution
- Step 1: Write the proportion equation
422,228.88 : 582,676.74 = 228,638.70 : x - Step 2: Convert to fraction form
422,228.88/582,676.74 = 228,638.70/x - Step 3: Cross multiply
422,228.88x = 582,676.74 × 228,638.70 - Step 4: Simplify right side
422,228.88x = 133,222,452,353.84 - Step 5: Solve for x
x = 133,222,452,353.84/422,228.88 - Step 6: Final answer
x = 315,521.89
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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.