Finding the Fourth Proportional to 2,639,365.11, 3,641,477.34 and 1,477,640.61
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Solution
The fourth proportional to 2,639,365.11, 3,641,477.34 and 1,477,640.61 is: 2,038,670.12
Step by Step Solution
- Step 1: Write the proportion equation
2,639,365.11 : 3,641,477.34 = 1,477,640.61 : x - Step 2: Convert to fraction form
2,639,365.11/3,641,477.34 = 1,477,640.61/x - Step 3: Cross multiply
2,639,365.11x = 3,641,477.34 × 1,477,640.61 - Step 4: Simplify right side
2,639,365.11x = 5,380,794,797,978.78 - Step 5: Solve for x
x = 5,380,794,797,978.78/2,639,365.11 - Step 6: Final answer
x = 2,038,670.12
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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.