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Finding the Fourth Proportional to 384,606.11, 576,978.87 and 192,580.67

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Solution

The fourth proportional to 384,606.11, 576,978.87 and 192,580.67 is: 288,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,606.11 : 576,978.87 = 192,580.67 : x
  2. Step 2: Convert to fraction form
    384,606.11/576,978.87 = 192,580.67/x
  3. Step 3: Cross multiply
    384,606.11x = 576,978.87 × 192,580.67
  4. Step 4: Simplify right side
    384,606.11x = 111,114,974,475.55
  5. Step 5: Solve for x
    x = 111,114,974,475.55/384,606.11
  6. Step 6: Final answer
    x = 288,905.90

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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.