Home / 2,115,581.28-2,919,472.24-1,197,786.72

Finding the Fourth Proportional to 2,115,581.28, 2,919,472.24 and 1,197,786.72

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Solution

The fourth proportional to 2,115,581.28, 2,919,472.24 and 1,197,786.72 is: 1,652,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,581.28 : 2,919,472.24 = 1,197,786.72 : x
  2. Step 2: Convert to fraction form
    2,115,581.28/2,919,472.24 = 1,197,786.72/x
  3. Step 3: Cross multiply
    2,115,581.28x = 2,919,472.24 × 1,197,786.72
  4. Step 4: Simplify right side
    2,115,581.28x = 3,496,905,078,480.65
  5. Step 5: Solve for x
    x = 3,496,905,078,480.65/2,115,581.28
  6. Step 6: Final answer
    x = 1,652,928.73

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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.