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Finding the Fourth Proportional to 617,620.80, 925,048.80 and 507,028.80

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Solution

The fourth proportional to 617,620.80, 925,048.80 and 507,028.80 is: 759,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,620.80 : 925,048.80 = 507,028.80 : x
  2. Step 2: Convert to fraction form
    617,620.80/925,048.80 = 507,028.80/x
  3. Step 3: Cross multiply
    617,620.80x = 925,048.80 × 507,028.80
  4. Step 4: Simplify right side
    617,620.80x = 469,026,383,005.44
  5. Step 5: Solve for x
    x = 469,026,383,005.44/617,620.80
  6. Step 6: Final answer
    x = 759,408.33

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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.