Finding the Fourth Proportional to 753,767.94, 1,040,239.62 and 427,144.35
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Solution
The fourth proportional to 753,767.94, 1,040,239.62 and 427,144.35 is: 589,481.79
Step by Step Solution
- Step 1: Write the proportion equation
753,767.94 : 1,040,239.62 = 427,144.35 : x - Step 2: Convert to fraction form
753,767.94/1,040,239.62 = 427,144.35/x - Step 3: Cross multiply
753,767.94x = 1,040,239.62 × 427,144.35 - Step 4: Simplify right side
753,767.94x = 444,332,476,329.15 - Step 5: Solve for x
x = 444,332,476,329.15/753,767.94 - Step 6: Final answer
x = 589,481.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.