Finding the Fourth Proportional to 2,172,898.12, 2,998,576.82 and 1,206,036.84
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Solution
The fourth proportional to 2,172,898.12, 2,998,576.82 and 1,206,036.84 is: 1,664,318.30
Step by Step Solution
- Step 1: Write the proportion equation
2,172,898.12 : 2,998,576.82 = 1,206,036.84 : x - Step 2: Convert to fraction form
2,172,898.12/2,998,576.82 = 1,206,036.84/x - Step 3: Cross multiply
2,172,898.12x = 2,998,576.82 × 1,206,036.84 - Step 4: Simplify right side
2,172,898.12x = 3,616,394,112,490.05 - Step 5: Solve for x
x = 3,616,394,112,490.05/2,172,898.12 - Step 6: Final answer
x = 1,664,318.30
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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.