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Finding the Fourth Proportional to 617,022.72, 925,760.64 and 440,915.84

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Solution

The fourth proportional to 617,022.72, 925,760.64 and 440,915.84 is: 661,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,022.72 : 925,760.64 = 440,915.84 : x
  2. Step 2: Convert to fraction form
    617,022.72/925,760.64 = 440,915.84/x
  3. Step 3: Cross multiply
    617,022.72x = 925,760.64 × 440,915.84
  4. Step 4: Simplify right side
    617,022.72x = 408,182,530,224.54
  5. Step 5: Solve for x
    x = 408,182,530,224.54/617,022.72
  6. Step 6: Final answer
    x = 661,535.66

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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.