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Finding the Fourth Proportional to 391,558.60, 587,337.90 and 241,311.70

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Solution

The fourth proportional to 391,558.60, 587,337.90 and 241,311.70 is: 361,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,558.60 : 587,337.90 = 241,311.70 : x
  2. Step 2: Convert to fraction form
    391,558.60/587,337.90 = 241,311.70/x
  3. Step 3: Cross multiply
    391,558.60x = 587,337.90 × 241,311.70
  4. Step 4: Simplify right side
    391,558.60x = 141,731,507,123.43
  5. Step 5: Solve for x
    x = 141,731,507,123.43/391,558.60
  6. Step 6: Final answer
    x = 361,967.55

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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.