Home / 320,480.24-480,683.64-83,845.76

Finding the Fourth Proportional to 320,480.24, 480,683.64 and 83,845.76

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Solution

The fourth proportional to 320,480.24, 480,683.64 and 83,845.76 is: 125,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,480.24 : 480,683.64 = 83,845.76 : x
  2. Step 2: Convert to fraction form
    320,480.24/480,683.64 = 83,845.76/x
  3. Step 3: Cross multiply
    320,480.24x = 480,683.64 × 83,845.76
  4. Step 4: Simplify right side
    320,480.24x = 40,303,285,115.37
  5. Step 5: Solve for x
    x = 40,303,285,115.37/320,480.24
  6. Step 6: Final answer
    x = 125,759.03

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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.