Finding the Fourth Proportional to 1,555,093.80, 2,332,640.70 and 1,289,373.30
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Solution
The fourth proportional to 1,555,093.80, 2,332,640.70 and 1,289,373.30 is: 1,934,059.95
Step by Step Solution
- Step 1: Write the proportion equation
1,555,093.80 : 2,332,640.70 = 1,289,373.30 : x - Step 2: Convert to fraction form
1,555,093.80/2,332,640.70 = 1,289,373.30/x - Step 3: Cross multiply
1,555,093.80x = 2,332,640.70 × 1,289,373.30 - Step 4: Simplify right side
1,555,093.80x = 3,007,644,637,073.31 - Step 5: Solve for x
x = 3,007,644,637,073.31/1,555,093.80 - Step 6: Final answer
x = 1,934,059.95
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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.