Finding the Fourth Proportional to 998,541.80, 1,497,812.70 and 979,879.40
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Solution
The fourth proportional to 998,541.80, 1,497,812.70 and 979,879.40 is: 1,469,819.10
Step by Step Solution
- Step 1: Write the proportion equation
998,541.80 : 1,497,812.70 = 979,879.40 : x - Step 2: Convert to fraction form
998,541.80/1,497,812.70 = 979,879.40/x - Step 3: Cross multiply
998,541.80x = 1,497,812.70 × 979,879.40 - Step 4: Simplify right side
998,541.80x = 1,467,675,809,788.38 - Step 5: Solve for x
x = 1,467,675,809,788.38/998,541.80 - Step 6: Final answer
x = 1,469,819.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.