Home / 1,873,939.20-2,811,100.80-611,861.76

Finding the Fourth Proportional to 1,873,939.20, 2,811,100.80 and 611,861.76

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Solution

The fourth proportional to 1,873,939.20, 2,811,100.80 and 611,861.76 is: 917,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873,939.20 : 2,811,100.80 = 611,861.76 : x
  2. Step 2: Convert to fraction form
    1,873,939.20/2,811,100.80 = 611,861.76/x
  3. Step 3: Cross multiply
    1,873,939.20x = 2,811,100.80 × 611,861.76
  4. Step 4: Simplify right side
    1,873,939.20x = 1,720,005,083,025.41
  5. Step 5: Solve for x
    x = 1,720,005,083,025.41/1,873,939.20
  6. Step 6: Final answer
    x = 917,855.33

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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.