Finding the Fourth Proportional to 811,537.63, 1,216,515.34 and 338,358.31
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Solution
The fourth proportional to 811,537.63, 1,216,515.34 and 338,358.31 is: 507,207.62
Step by Step Solution
- Step 1: Write the proportion equation
811,537.63 : 1,216,515.34 = 338,358.31 : x - Step 2: Convert to fraction form
811,537.63/1,216,515.34 = 338,358.31/x - Step 3: Cross multiply
811,537.63x = 1,216,515.34 × 338,358.31 - Step 4: Simplify right side
811,537.63x = 411,618,066,757.11 - Step 5: Solve for x
x = 411,618,066,757.11/811,537.63 - Step 6: Final answer
x = 507,207.62
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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.