Finding the Fourth Proportional to 665,121.40, 997,682.10 and 265,823.80
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Solution
The fourth proportional to 665,121.40, 997,682.10 and 265,823.80 is: 398,735.70
Step by Step Solution
- Step 1: Write the proportion equation
665,121.40 : 997,682.10 = 265,823.80 : x - Step 2: Convert to fraction form
665,121.40/997,682.10 = 265,823.80/x - Step 3: Cross multiply
665,121.40x = 997,682.10 × 265,823.80 - Step 4: Simplify right side
665,121.40x = 265,207,647,013.98 - Step 5: Solve for x
x = 265,207,647,013.98/665,121.40 - Step 6: Final answer
x = 398,735.70
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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.