Finding the Fourth Proportional to 1,805,756.07, 2,491,889.37 and 989,931.87
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Solution
The fourth proportional to 1,805,756.07, 2,491,889.37 and 989,931.87 is: 1,366,076.37
Step by Step Solution
- Step 1: Write the proportion equation
1,805,756.07 : 2,491,889.37 = 989,931.87 : x - Step 2: Convert to fraction form
1,805,756.07/2,491,889.37 = 989,931.87/x - Step 3: Cross multiply
1,805,756.07x = 2,491,889.37 × 989,931.87 - Step 4: Simplify right side
1,805,756.07x = 2,466,800,703,877.22 - Step 5: Solve for x
x = 2,466,800,703,877.22/1,805,756.07 - Step 6: Final answer
x = 1,366,076.37
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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.