Finding the Fourth Proportional to 3,798,481.55, 5,242,642.29 and 2,879,107.07
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Solution
The fourth proportional to 3,798,481.55, 5,242,642.29 and 2,879,107.07 is: 3,973,726.94
Step by Step Solution
- Step 1: Write the proportion equation
3,798,481.55 : 5,242,642.29 = 2,879,107.07 : x - Step 2: Convert to fraction form
3,798,481.55/5,242,642.29 = 2,879,107.07/x - Step 3: Cross multiply
3,798,481.55x = 5,242,642.29 × 2,879,107.07 - Step 4: Simplify right side
3,798,481.55x = 15,094,128,456,406.78 - Step 5: Solve for x
x = 15,094,128,456,406.78/3,798,481.55 - Step 6: Final answer
x = 3,973,726.94
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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.