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Finding the Fourth Proportional to 619,318.60, 929,004.90 and 170,027.80

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Solution

The fourth proportional to 619,318.60, 929,004.90 and 170,027.80 is: 255,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,318.60 : 929,004.90 = 170,027.80 : x
  2. Step 2: Convert to fraction form
    619,318.60/929,004.90 = 170,027.80/x
  3. Step 3: Cross multiply
    619,318.60x = 929,004.90 × 170,027.80
  4. Step 4: Simplify right side
    619,318.60x = 157,956,659,336.22
  5. Step 5: Solve for x
    x = 157,956,659,336.22/619,318.60
  6. Step 6: Final answer
    x = 255,049.11

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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.