Finding the Fourth Proportional to 1,855,846.80, 2,561,281.80 and 1,040,271.12
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Solution
The fourth proportional to 1,855,846.80, 2,561,281.80 and 1,040,271.12 is: 1,435,693.66
Step by Step Solution
- Step 1: Write the proportion equation
1,855,846.80 : 2,561,281.80 = 1,040,271.12 : x - Step 2: Convert to fraction form
1,855,846.80/2,561,281.80 = 1,040,271.12/x - Step 3: Cross multiply
1,855,846.80x = 2,561,281.80 × 1,040,271.12 - Step 4: Simplify right side
1,855,846.80x = 2,664,427,486,721.62 - Step 5: Solve for x
x = 2,664,427,486,721.62/1,855,846.80 - Step 6: Final answer
x = 1,435,693.66
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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.