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Finding the Fourth Proportional to 669,537.72, 923,962 and 367,731.72

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Solution

The fourth proportional to 669,537.72, 923,962 and 367,731.72 is: 507,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,537.72 : 923,962 = 367,731.72 : x
  2. Step 2: Convert to fraction form
    669,537.72/923,962 = 367,731.72/x
  3. Step 3: Cross multiply
    669,537.72x = 923,962 × 367,731.72
  4. Step 4: Simplify right side
    669,537.72x = 339,770,135,474.64
  5. Step 5: Solve for x
    x = 339,770,135,474.64/669,537.72
  6. Step 6: Final answer
    x = 507,469.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.