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Finding the Fourth Proportional to 391,794.76, 587,698.62 and 111,301.48

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Solution

The fourth proportional to 391,794.76, 587,698.62 and 111,301.48 is: 166,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,794.76 : 587,698.62 = 111,301.48 : x
  2. Step 2: Convert to fraction form
    391,794.76/587,698.62 = 111,301.48/x
  3. Step 3: Cross multiply
    391,794.76x = 587,698.62 × 111,301.48
  4. Step 4: Simplify right side
    391,794.76x = 65,411,726,199.96
  5. Step 5: Solve for x
    x = 65,411,726,199.96/391,794.76
  6. Step 6: Final answer
    x = 166,954.06

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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.