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Finding the Fourth Proportional to 647,579.30, 970,980.15 and 332,651.30

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Solution

The fourth proportional to 647,579.30, 970,980.15 and 332,651.30 is: 498,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,579.30 : 970,980.15 = 332,651.30 : x
  2. Step 2: Convert to fraction form
    647,579.30/970,980.15 = 332,651.30/x
  3. Step 3: Cross multiply
    647,579.30x = 970,980.15 × 332,651.30
  4. Step 4: Simplify right side
    647,579.30x = 322,997,809,171.70
  5. Step 5: Solve for x
    x = 322,997,809,171.70/647,579.30
  6. Step 6: Final answer
    x = 498,777.23

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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.