Finding the Fourth Proportional to 987,782.62, 1,481,519.46 and 313,775.26
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Solution
The fourth proportional to 987,782.62, 1,481,519.46 and 313,775.26 is: 470,613.82
Step by Step Solution
- Step 1: Write the proportion equation
987,782.62 : 1,481,519.46 = 313,775.26 : x - Step 2: Convert to fraction form
987,782.62/1,481,519.46 = 313,775.26/x - Step 3: Cross multiply
987,782.62x = 1,481,519.46 × 313,775.26 - Step 4: Simplify right side
987,782.62x = 464,864,153,756.56 - Step 5: Solve for x
x = 464,864,153,756.56/987,782.62 - Step 6: Final answer
x = 470,613.82
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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.