Home / 320,423.24-480,667.77-120,911.54

Finding the Fourth Proportional to 320,423.24, 480,667.77 and 120,911.54

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Solution

The fourth proportional to 320,423.24, 480,667.77 and 120,911.54 is: 181,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,423.24 : 480,667.77 = 120,911.54 : x
  2. Step 2: Convert to fraction form
    320,423.24/480,667.77 = 120,911.54/x
  3. Step 3: Cross multiply
    320,423.24x = 480,667.77 × 120,911.54
  4. Step 4: Simplify right side
    320,423.24x = 58,118,277,895.73
  5. Step 5: Solve for x
    x = 58,118,277,895.73/320,423.24
  6. Step 6: Final answer
    x = 181,379.72

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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.