Finding the Fourth Proportional to 1,326,735.45, 1,990,092.25 and 380,107.08
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Solution
The fourth proportional to 1,326,735.45, 1,990,092.25 and 380,107.08 is: 570,157.49
Step by Step Solution
- Step 1: Write the proportion equation
1,326,735.45 : 1,990,092.25 = 380,107.08 : x - Step 2: Convert to fraction form
1,326,735.45/1,990,092.25 = 380,107.08/x - Step 3: Cross multiply
1,326,735.45x = 1,990,092.25 × 380,107.08 - Step 4: Simplify right side
1,326,735.45x = 756,448,154,078.13 - Step 5: Solve for x
x = 756,448,154,078.13/1,326,735.45 - Step 6: Final answer
x = 570,157.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.