Finding the Fourth Proportional to 2,251,855.36, 3,107,565.12 and 1,219,374.40
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Solution
The fourth proportional to 2,251,855.36, 3,107,565.12 and 1,219,374.40 is: 1,682,739.23
Step by Step Solution
- Step 1: Write the proportion equation
2,251,855.36 : 3,107,565.12 = 1,219,374.40 : x - Step 2: Convert to fraction form
2,251,855.36/3,107,565.12 = 1,219,374.40/x - Step 3: Cross multiply
2,251,855.36x = 3,107,565.12 × 1,219,374.40 - Step 4: Simplify right side
2,251,855.36x = 3,789,285,353,660.93 - Step 5: Solve for x
x = 3,789,285,353,660.93/2,251,855.36 - Step 6: Final answer
x = 1,682,739.23
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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.