Finding the Fourth Proportional to 1,899,689.92, 2,621,576.28 and 1,028,533.84
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Solution
The fourth proportional to 1,899,689.92, 2,621,576.28 and 1,028,533.84 is: 1,419,378.97
Step by Step Solution
- Step 1: Write the proportion equation
1,899,689.92 : 2,621,576.28 = 1,028,533.84 : x - Step 2: Convert to fraction form
1,899,689.92/2,621,576.28 = 1,028,533.84/x - Step 3: Cross multiply
1,899,689.92x = 2,621,576.28 × 1,028,533.84 - Step 4: Simplify right side
1,899,689.92x = 2,696,379,918,121.32 - Step 5: Solve for x
x = 2,696,379,918,121.32/1,899,689.92 - Step 6: Final answer
x = 1,419,378.97
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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.