Finding the Fourth Proportional to 2,143,634.20, 2,958,106.56 and 1,272,506.13
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Solution
The fourth proportional to 2,143,634.20, 2,958,106.56 and 1,272,506.13 is: 1,755,993.97
Step by Step Solution
- Step 1: Write the proportion equation
2,143,634.20 : 2,958,106.56 = 1,272,506.13 : x - Step 2: Convert to fraction form
2,143,634.20/2,958,106.56 = 1,272,506.13/x - Step 3: Cross multiply
2,143,634.20x = 2,958,106.56 × 1,272,506.13 - Step 4: Simplify right side
2,143,634.20x = 3,764,208,730,793.21 - Step 5: Solve for x
x = 3,764,208,730,793.21/2,143,634.20 - Step 6: Final answer
x = 1,755,993.97
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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.