Home / 481,025.76-721,330.20-228,379.20

Finding the Fourth Proportional to 481,025.76, 721,330.20 and 228,379.20

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Solution

The fourth proportional to 481,025.76, 721,330.20 and 228,379.20 is: 342,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,025.76 : 721,330.20 = 228,379.20 : x
  2. Step 2: Convert to fraction form
    481,025.76/721,330.20 = 228,379.20/x
  3. Step 3: Cross multiply
    481,025.76x = 721,330.20 × 228,379.20
  4. Step 4: Simplify right side
    481,025.76x = 164,736,814,011.84
  5. Step 5: Solve for x
    x = 164,736,814,011.84/481,025.76
  6. Step 6: Final answer
    x = 342,469.84

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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.