Finding the Fourth Proportional to 436,556.91, 655,257.69 and 315,102.66
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Solution
The fourth proportional to 436,556.91, 655,257.69 and 315,102.66 is: 472,958.83
Step by Step Solution
- Step 1: Write the proportion equation
436,556.91 : 655,257.69 = 315,102.66 : x - Step 2: Convert to fraction form
436,556.91/655,257.69 = 315,102.66/x - Step 3: Cross multiply
436,556.91x = 655,257.69 × 315,102.66 - Step 4: Simplify right side
436,556.91x = 206,473,442,333.06 - Step 5: Solve for x
x = 206,473,442,333.06/436,556.91 - Step 6: Final answer
x = 472,958.83
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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.