Home / 455,919.67-683,318.95-255,819.66

Finding the Fourth Proportional to 455,919.67, 683,318.95 and 255,819.66

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Solution

The fourth proportional to 455,919.67, 683,318.95 and 255,819.66 is: 383,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,919.67 : 683,318.95 = 255,819.66 : x
  2. Step 2: Convert to fraction form
    455,919.67/683,318.95 = 255,819.66/x
  3. Step 3: Cross multiply
    455,919.67x = 683,318.95 × 255,819.66
  4. Step 4: Simplify right side
    455,919.67x = 174,806,420,181.46
  5. Step 5: Solve for x
    x = 174,806,420,181.46/455,919.67
  6. Step 6: Final answer
    x = 383,414.96

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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.