Finding the Fourth Proportional to 979,987.49, 1,352,874.40 and 612,668.69
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Solution
The fourth proportional to 979,987.49, 1,352,874.40 and 612,668.69 is: 845,790.17
Step by Step Solution
- Step 1: Write the proportion equation
979,987.49 : 1,352,874.40 = 612,668.69 : x - Step 2: Convert to fraction form
979,987.49/1,352,874.40 = 612,668.69/x - Step 3: Cross multiply
979,987.49x = 1,352,874.40 × 612,668.69 - Step 4: Simplify right side
979,987.49x = 828,863,782,801.07 - Step 5: Solve for x
x = 828,863,782,801.07/979,987.49 - Step 6: Final answer
x = 845,790.17
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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.