Finding the Fourth Proportional to 1,917,815.26, 2,647,579.98 and 1,400,988.88
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Solution
The fourth proportional to 1,917,815.26, 2,647,579.98 and 1,400,988.88 is: 1,934,091.46
Step by Step Solution
- Step 1: Write the proportion equation
1,917,815.26 : 2,647,579.98 = 1,400,988.88 : x - Step 2: Convert to fraction form
1,917,815.26/2,647,579.98 = 1,400,988.88/x - Step 3: Cross multiply
1,917,815.26x = 2,647,579.98 × 1,400,988.88 - Step 4: Simplify right side
1,917,815.26x = 3,709,230,110,890.62 - Step 5: Solve for x
x = 3,709,230,110,890.62/1,917,815.26 - Step 6: Final answer
x = 1,934,091.46
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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.