Home / 646,654.88-969,984.24-225,930.80

Finding the Fourth Proportional to 646,654.88, 969,984.24 and 225,930.80

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Solution

The fourth proportional to 646,654.88, 969,984.24 and 225,930.80 is: 338,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,654.88 : 969,984.24 = 225,930.80 : x
  2. Step 2: Convert to fraction form
    646,654.88/969,984.24 = 225,930.80/x
  3. Step 3: Cross multiply
    646,654.88x = 969,984.24 × 225,930.80
  4. Step 4: Simplify right side
    646,654.88x = 219,149,315,330.59
  5. Step 5: Solve for x
    x = 219,149,315,330.59/646,654.88
  6. Step 6: Final answer
    x = 338,896.87

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1.5x scale

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.