Finding the Fourth Proportional to 567,512.78, 783,172.97 and 312,873.08
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Solution
The fourth proportional to 567,512.78, 783,172.97 and 312,873.08 is: 431,767.79
Step by Step Solution
- Step 1: Write the proportion equation
567,512.78 : 783,172.97 = 312,873.08 : x - Step 2: Convert to fraction form
567,512.78/783,172.97 = 312,873.08/x - Step 3: Cross multiply
567,512.78x = 783,172.97 × 312,873.08 - Step 4: Simplify right side
567,512.78x = 245,033,736,162.97 - Step 5: Solve for x
x = 245,033,736,162.97/567,512.78 - Step 6: Final answer
x = 431,767.79
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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.