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Finding the Fourth Proportional to 647,579.80, 970,980.90 and 332,651.80

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Solution

The fourth proportional to 647,579.80, 970,980.90 and 332,651.80 is: 498,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,579.80 : 970,980.90 = 332,651.80 : x
  2. Step 2: Convert to fraction form
    647,579.80/970,980.90 = 332,651.80/x
  3. Step 3: Cross multiply
    647,579.80x = 970,980.90 × 332,651.80
  4. Step 4: Simplify right side
    647,579.80x = 322,998,544,150.62
  5. Step 5: Solve for x
    x = 322,998,544,150.62/647,579.80
  6. Step 6: Final answer
    x = 498,777.98

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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.