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Finding the Fourth Proportional to 404,639.12, 606,179.72 and 252,895.52

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Solution

The fourth proportional to 404,639.12, 606,179.72 and 252,895.52 is: 378,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,639.12 : 606,179.72 = 252,895.52 : x
  2. Step 2: Convert to fraction form
    404,639.12/606,179.72 = 252,895.52/x
  3. Step 3: Cross multiply
    404,639.12x = 606,179.72 × 252,895.52
  4. Step 4: Simplify right side
    404,639.12x = 153,300,135,502.85
  5. Step 5: Solve for x
    x = 153,300,135,502.85/404,639.12
  6. Step 6: Final answer
    x = 378,856.44

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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.