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Finding the Fourth Proportional to 392,865.30, 587,814.03 and 240,520.50

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Solution

The fourth proportional to 392,865.30, 587,814.03 and 240,520.50 is: 359,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,865.30 : 587,814.03 = 240,520.50 : x
  2. Step 2: Convert to fraction form
    392,865.30/587,814.03 = 240,520.50/x
  3. Step 3: Cross multiply
    392,865.30x = 587,814.03 × 240,520.50
  4. Step 4: Simplify right side
    392,865.30x = 141,381,324,402.62
  5. Step 5: Solve for x
    x = 141,381,324,402.62/392,865.30
  6. Step 6: Final answer
    x = 359,872.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.