Finding the Fourth Proportional to 1,180,987.94, 1,629,815.04 and 664,775.14
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Solution
The fourth proportional to 1,180,987.94, 1,629,815.04 and 664,775.14 is: 917,418.79
Step by Step Solution
- Step 1: Write the proportion equation
1,180,987.94 : 1,629,815.04 = 664,775.14 : x - Step 2: Convert to fraction form
1,180,987.94/1,629,815.04 = 664,775.14/x - Step 3: Cross multiply
1,180,987.94x = 1,629,815.04 × 664,775.14 - Step 4: Simplify right side
1,180,987.94x = 1,083,460,521,390.11 - Step 5: Solve for x
x = 1,083,460,521,390.11/1,180,987.94 - Step 6: Final answer
x = 917,418.79
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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.