Finding the Fourth Proportional to 644,804.80, 967,207.20 and 445,739.20
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Solution
The fourth proportional to 644,804.80, 967,207.20 and 445,739.20 is: 668,608.80
Step by Step Solution
- Step 1: Write the proportion equation
644,804.80 : 967,207.20 = 445,739.20 : x - Step 2: Convert to fraction form
644,804.80/967,207.20 = 445,739.20/x - Step 3: Cross multiply
644,804.80x = 967,207.20 × 445,739.20 - Step 4: Simplify right side
644,804.80x = 431,122,163,562.24 - Step 5: Solve for x
x = 431,122,163,562.24/644,804.80 - Step 6: Final answer
x = 668,608.80
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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.