Finding the Fourth Proportional to 1,998,423.99, 2,758,087.98 and 1,138,787.19
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Solution
The fourth proportional to 1,998,423.99, 2,758,087.98 and 1,138,787.19 is: 1,571,676.12
Step by Step Solution
- Step 1: Write the proportion equation
1,998,423.99 : 2,758,087.98 = 1,138,787.19 : x - Step 2: Convert to fraction form
1,998,423.99/2,758,087.98 = 1,138,787.19/x - Step 3: Cross multiply
1,998,423.99x = 2,758,087.98 × 1,138,787.19 - Step 4: Simplify right side
1,998,423.99x = 3,140,875,260,516.98 - Step 5: Solve for x
x = 3,140,875,260,516.98/1,998,423.99 - Step 6: Final answer
x = 1,571,676.12
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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.