Finding the Fourth Proportional to 682,709.70, 1,024,064.55 and 472,757.70
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Solution
The fourth proportional to 682,709.70, 1,024,064.55 and 472,757.70 is: 709,136.55
Step by Step Solution
- Step 1: Write the proportion equation
682,709.70 : 1,024,064.55 = 472,757.70 : x - Step 2: Convert to fraction form
682,709.70/1,024,064.55 = 472,757.70/x - Step 3: Cross multiply
682,709.70x = 1,024,064.55 × 472,757.70 - Step 4: Simplify right side
682,709.70x = 484,134,401,309.54 - Step 5: Solve for x
x = 484,134,401,309.54/682,709.70 - Step 6: Final answer
x = 709,136.55
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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.