Finding the Fourth Proportional to 762,774.26, 1,143,718.34 and 289,201.28
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Solution
The fourth proportional to 762,774.26, 1,143,718.34 and 289,201.28 is: 433,633.94
Step by Step Solution
- Step 1: Write the proportion equation
762,774.26 : 1,143,718.34 = 289,201.28 : x - Step 2: Convert to fraction form
762,774.26/1,143,718.34 = 289,201.28/x - Step 3: Cross multiply
762,774.26x = 1,143,718.34 × 289,201.28 - Step 4: Simplify right side
762,774.26x = 330,764,807,887.48 - Step 5: Solve for x
x = 330,764,807,887.48/762,774.26 - Step 6: Final answer
x = 433,633.94
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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.