Home / 836,396.37-1,255,011.39-331,321.41

Finding the Fourth Proportional to 836,396.37, 1,255,011.39 and 331,321.41

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Solution

The fourth proportional to 836,396.37, 1,255,011.39 and 331,321.41 is: 497,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,396.37 : 1,255,011.39 = 331,321.41 : x
  2. Step 2: Convert to fraction form
    836,396.37/1,255,011.39 = 331,321.41/x
  3. Step 3: Cross multiply
    836,396.37x = 1,255,011.39 × 331,321.41
  4. Step 4: Simplify right side
    836,396.37x = 415,812,143,300.86
  5. Step 5: Solve for x
    x = 415,812,143,300.86/836,396.37
  6. Step 6: Final answer
    x = 497,147.24

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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.