Finding the Fourth Proportional to 644,800.80, 967,201.20 and 445,735.20
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Solution
The fourth proportional to 644,800.80, 967,201.20 and 445,735.20 is: 668,602.80
Step by Step Solution
- Step 1: Write the proportion equation
644,800.80 : 967,201.20 = 445,735.20 : x - Step 2: Convert to fraction form
644,800.80/967,201.20 = 445,735.20/x - Step 3: Cross multiply
644,800.80x = 967,201.20 × 445,735.20 - Step 4: Simplify right side
644,800.80x = 431,115,620,322.24 - Step 5: Solve for x
x = 431,115,620,322.24/644,800.80 - Step 6: Final answer
x = 668,602.80
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Similar ratio
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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.