Finding the Fourth Proportional to 873,422.36, 1,205,795.97 and 612,578.72
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Solution
The fourth proportional to 873,422.36, 1,205,795.97 and 612,578.72 is: 845,690.45
Step by Step Solution
- Step 1: Write the proportion equation
873,422.36 : 1,205,795.97 = 612,578.72 : x - Step 2: Convert to fraction form
873,422.36/1,205,795.97 = 612,578.72/x - Step 3: Cross multiply
873,422.36x = 1,205,795.97 × 612,578.72 - Step 4: Simplify right side
873,422.36x = 738,644,948,115.65 - Step 5: Solve for x
x = 738,644,948,115.65/873,422.36 - Step 6: Final answer
x = 845,690.45
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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.