Home / 455,919.17-683,318.19-255,819.16

Finding the Fourth Proportional to 455,919.17, 683,318.19 and 255,819.16

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Solution

The fourth proportional to 455,919.17, 683,318.19 and 255,819.16 is: 383,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,919.17 : 683,318.19 = 255,819.16 : x
  2. Step 2: Convert to fraction form
    455,919.17/683,318.19 = 255,819.16/x
  3. Step 3: Cross multiply
    455,919.17x = 683,318.19 × 255,819.16
  4. Step 4: Simplify right side
    455,919.17x = 174,805,887,191.99
  5. Step 5: Solve for x
    x = 174,805,887,191.99/455,919.17
  6. Step 6: Final answer
    x = 383,414.21

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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.