Finding the Fourth Proportional to 1,290,230.08, 1,780,563.17 and 709,497.52
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Solution
The fourth proportional to 1,290,230.08, 1,780,563.17 and 709,497.52 is: 979,131.69
Step by Step Solution
- Step 1: Write the proportion equation
1,290,230.08 : 1,780,563.17 = 709,497.52 : x - Step 2: Convert to fraction form
1,290,230.08/1,780,563.17 = 709,497.52/x - Step 3: Cross multiply
1,290,230.08x = 1,780,563.17 × 709,497.52 - Step 4: Simplify right side
1,290,230.08x = 1,263,305,150,640.67 - Step 5: Solve for x
x = 1,263,305,150,640.67/1,290,230.08 - Step 6: Final answer
x = 979,131.69
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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.