Finding the Fourth Proportional to 720,418.09, 1,081,358.34 and 360,846.58
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Solution
The fourth proportional to 720,418.09, 1,081,358.34 and 360,846.58 is: 541,636.12
Step by Step Solution
- Step 1: Write the proportion equation
720,418.09 : 1,081,358.34 = 360,846.58 : x - Step 2: Convert to fraction form
720,418.09/1,081,358.34 = 360,846.58/x - Step 3: Cross multiply
720,418.09x = 1,081,358.34 × 360,846.58 - Step 4: Simplify right side
720,418.09x = 390,204,458,743.48 - Step 5: Solve for x
x = 390,204,458,743.48/720,418.09 - Step 6: Final answer
x = 541,636.12
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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.