Home / 448,768.44-673,147.35-128,928.06

Finding the Fourth Proportional to 448,768.44, 673,147.35 and 128,928.06

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Solution

The fourth proportional to 448,768.44, 673,147.35 and 128,928.06 is: 193,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,768.44 : 673,147.35 = 128,928.06 : x
  2. Step 2: Convert to fraction form
    448,768.44/673,147.35 = 128,928.06/x
  3. Step 3: Cross multiply
    448,768.44x = 673,147.35 × 128,928.06
  4. Step 4: Simplify right side
    448,768.44x = 86,787,581,929.64
  5. Step 5: Solve for x
    x = 86,787,581,929.64/448,768.44
  6. Step 6: Final answer
    x = 193,390.56

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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.