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Finding the Fourth Proportional to 618,321.60, 926,942.40 and 239,500.80

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Solution

The fourth proportional to 618,321.60, 926,942.40 and 239,500.80 is: 359,042.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,321.60 : 926,942.40 = 239,500.80 : x
  2. Step 2: Convert to fraction form
    618,321.60/926,942.40 = 239,500.80/x
  3. Step 3: Cross multiply
    618,321.60x = 926,942.40 × 239,500.80
  4. Step 4: Simplify right side
    618,321.60x = 222,003,446,353.92
  5. Step 5: Solve for x
    x = 222,003,446,353.92/618,321.60
  6. Step 6: Final answer
    x = 359,042.04

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1.5x scale

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.