Finding the Fourth Proportional to 1,431,874.31, 2,151,748.09 and 1,338,248.84
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Solution
The fourth proportional to 1,431,874.31, 2,151,748.09 and 1,338,248.84 is: 2,011,052.48
Step by Step Solution
- Step 1: Write the proportion equation
1,431,874.31 : 2,151,748.09 = 1,338,248.84 : x - Step 2: Convert to fraction form
1,431,874.31/2,151,748.09 = 1,338,248.84/x - Step 3: Cross multiply
1,431,874.31x = 2,151,748.09 × 1,338,248.84 - Step 4: Simplify right side
1,431,874.31x = 2,879,574,388,432.37 - Step 5: Solve for x
x = 2,879,574,388,432.37/1,431,874.31 - Step 6: Final answer
x = 2,011,052.48
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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.