Home / 723,667.54-998,780.75-401,481.44

Finding the Fourth Proportional to 723,667.54, 998,780.75 and 401,481.44

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Solution

The fourth proportional to 723,667.54, 998,780.75 and 401,481.44 is: 554,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,667.54 : 998,780.75 = 401,481.44 : x
  2. Step 2: Convert to fraction form
    723,667.54/998,780.75 = 401,481.44/x
  3. Step 3: Cross multiply
    723,667.54x = 998,780.75 × 401,481.44
  4. Step 4: Simplify right side
    723,667.54x = 400,991,933,754.28
  5. Step 5: Solve for x
    x = 400,991,933,754.28/723,667.54
  6. Step 6: Final answer
    x = 554,110.71

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1.5x scale

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.