Home / 628,489.20-867,333.18-342,027.44

Finding the Fourth Proportional to 628,489.20, 867,333.18 and 342,027.44

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Solution

The fourth proportional to 628,489.20, 867,333.18 and 342,027.44 is: 472,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,489.20 : 867,333.18 = 342,027.44 : x
  2. Step 2: Convert to fraction form
    628,489.20/867,333.18 = 342,027.44/x
  3. Step 3: Cross multiply
    628,489.20x = 867,333.18 × 342,027.44
  4. Step 4: Simplify right side
    628,489.20x = 296,651,747,182.46
  5. Step 5: Solve for x
    x = 296,651,747,182.46/628,489.20
  6. Step 6: Final answer
    x = 472,007.71

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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.