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Finding the Fourth Proportional to 617,816.20, 927,242.70 and 302,542.60

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Solution

The fourth proportional to 617,816.20, 927,242.70 and 302,542.60 is: 454,067.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,816.20 : 927,242.70 = 302,542.60 : x
  2. Step 2: Convert to fraction form
    617,816.20/927,242.70 = 302,542.60/x
  3. Step 3: Cross multiply
    617,816.20x = 927,242.70 × 302,542.60
  4. Step 4: Simplify right side
    617,816.20x = 280,530,417,289.02
  5. Step 5: Solve for x
    x = 280,530,417,289.02/617,816.20
  6. Step 6: Final answer
    x = 454,067.76

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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.