Finding the Fourth Proportional to 878,418.44, 1,212,167.14 and 485,927.98
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Solution
The fourth proportional to 878,418.44, 1,212,167.14 and 485,927.98 is: 670,552.78
Step by Step Solution
- Step 1: Write the proportion equation
878,418.44 : 1,212,167.14 = 485,927.98 : x - Step 2: Convert to fraction form
878,418.44/1,212,167.14 = 485,927.98/x - Step 3: Cross multiply
878,418.44x = 1,212,167.14 × 485,927.98 - Step 4: Simplify right side
878,418.44x = 589,025,930,062.97 - Step 5: Solve for x
x = 589,025,930,062.97/878,418.44 - Step 6: Final answer
x = 670,552.78
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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.