Finding the Fourth Proportional to 1,555,342.20, 2,332,791.78 and 490,245.84
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Solution
The fourth proportional to 1,555,342.20, 2,332,791.78 and 490,245.84 is: 735,298.94
Step by Step Solution
- Step 1: Write the proportion equation
1,555,342.20 : 2,332,791.78 = 490,245.84 : x - Step 2: Convert to fraction form
1,555,342.20/2,332,791.78 = 490,245.84/x - Step 3: Cross multiply
1,555,342.20x = 2,332,791.78 × 490,245.84 - Step 4: Simplify right side
1,555,342.20x = 1,143,641,465,731.20 - Step 5: Solve for x
x = 1,143,641,465,731.20/1,555,342.20 - Step 6: Final answer
x = 735,298.94
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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.