Finding the Fourth Proportional to 1,557,748.20, 2,336,622.30 and 1,025,869.80
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Solution
The fourth proportional to 1,557,748.20, 2,336,622.30 and 1,025,869.80 is: 1,538,804.70
Step by Step Solution
- Step 1: Write the proportion equation
1,557,748.20 : 2,336,622.30 = 1,025,869.80 : x - Step 2: Convert to fraction form
1,557,748.20/2,336,622.30 = 1,025,869.80/x - Step 3: Cross multiply
1,557,748.20x = 2,336,622.30 × 1,025,869.80 - Step 4: Simplify right side
1,557,748.20x = 2,397,070,251,576.54 - Step 5: Solve for x
x = 2,397,070,251,576.54/1,557,748.20 - Step 6: Final answer
x = 1,538,804.70
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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.