Finding the Fourth Proportional to 1,983,993.21, 2,738,124.54 and 1,124,461.17
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Solution
The fourth proportional to 1,983,993.21, 2,738,124.54 and 1,124,461.17 is: 1,551,877.65
Step by Step Solution
- Step 1: Write the proportion equation
1,983,993.21 : 2,738,124.54 = 1,124,461.17 : x - Step 2: Convert to fraction form
1,983,993.21/2,738,124.54 = 1,124,461.17/x - Step 3: Cross multiply
1,983,993.21x = 2,738,124.54 × 1,124,461.17 - Step 4: Simplify right side
1,983,993.21x = 3,078,914,723,854.11 - Step 5: Solve for x
x = 3,078,914,723,854.11/1,983,993.21 - Step 6: Final answer
x = 1,551,877.65
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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.