Home / 2,628,785.40-3,942,011.70-1,208,110.20

Finding the Fourth Proportional to 2,628,785.40, 3,942,011.70 and 1,208,110.20

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Solution

The fourth proportional to 2,628,785.40, 3,942,011.70 and 1,208,110.20 is: 1,811,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,785.40 : 3,942,011.70 = 1,208,110.20 : x
  2. Step 2: Convert to fraction form
    2,628,785.40/3,942,011.70 = 1,208,110.20/x
  3. Step 3: Cross multiply
    2,628,785.40x = 3,942,011.70 × 1,208,110.20
  4. Step 4: Simplify right side
    2,628,785.40x = 4,762,384,543,289.34
  5. Step 5: Solve for x
    x = 4,762,384,543,289.34/2,628,785.40
  6. Step 6: Final answer
    x = 1,811,629.26

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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.