Finding the Fourth Proportional to 3,798,820.11, 5,242,366.12 and 2,056,480.95
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Solution
The fourth proportional to 3,798,820.11, 5,242,366.12 and 2,056,480.95 is: 2,837,940.66
Step by Step Solution
- Step 1: Write the proportion equation
3,798,820.11 : 5,242,366.12 = 2,056,480.95 : x - Step 2: Convert to fraction form
3,798,820.11/5,242,366.12 = 2,056,480.95/x - Step 3: Cross multiply
3,798,820.11x = 5,242,366.12 × 2,056,480.95 - Step 4: Simplify right side
3,798,820.11x = 10,780,826,037,634.79 - Step 5: Solve for x
x = 10,780,826,037,634.79/3,798,820.11 - Step 6: Final answer
x = 2,837,940.66
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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.