Home / 320,447.33-480,698.43-83,789.63

Finding the Fourth Proportional to 320,447.33, 480,698.43 and 83,789.63

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Solution

The fourth proportional to 320,447.33, 480,698.43 and 83,789.63 is: 125,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,447.33 : 480,698.43 = 83,789.63 : x
  2. Step 2: Convert to fraction form
    320,447.33/480,698.43 = 83,789.63/x
  3. Step 3: Cross multiply
    320,447.33x = 480,698.43 × 83,789.63
  4. Step 4: Simplify right side
    320,447.33x = 40,277,543,591.28
  5. Step 5: Solve for x
    x = 40,277,543,591.28/320,447.33
  6. Step 6: Final answer
    x = 125,691.62

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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.