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Finding the Fourth Proportional to 617,150.02, 925,665.08 and 418,745.38

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Solution

The fourth proportional to 617,150.02, 925,665.08 and 418,745.38 is: 628,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,150.02 : 925,665.08 = 418,745.38 : x
  2. Step 2: Convert to fraction form
    617,150.02/925,665.08 = 418,745.38/x
  3. Step 3: Cross multiply
    617,150.02x = 925,665.08 × 418,745.38
  4. Step 4: Simplify right side
    617,150.02x = 387,617,975,677.33
  5. Step 5: Solve for x
    x = 387,617,975,677.33/617,150.02
  6. Step 6: Final answer
    x = 628,077.39

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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.