Home / 811,834.56-1,120,308.84-449,273.52

Finding the Fourth Proportional to 811,834.56, 1,120,308.84 and 449,273.52

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Solution

The fourth proportional to 811,834.56, 1,120,308.84 and 449,273.52 is: 619,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,834.56 : 1,120,308.84 = 449,273.52 : x
  2. Step 2: Convert to fraction form
    811,834.56/1,120,308.84 = 449,273.52/x
  3. Step 3: Cross multiply
    811,834.56x = 1,120,308.84 × 449,273.52
  4. Step 4: Simplify right side
    811,834.56x = 503,325,096,033.92
  5. Step 5: Solve for x
    x = 503,325,096,033.92/811,834.56
  6. Step 6: Final answer
    x = 619,984.81

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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.