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Finding the Fourth Proportional to 488,313.30, 732,360.60 and 321,007.80

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Solution

The fourth proportional to 488,313.30, 732,360.60 and 321,007.80 is: 481,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,313.30 : 732,360.60 = 321,007.80 : x
  2. Step 2: Convert to fraction form
    488,313.30/732,360.60 = 321,007.80/x
  3. Step 3: Cross multiply
    488,313.30x = 732,360.60 × 321,007.80
  4. Step 4: Simplify right side
    488,313.30x = 235,093,465,012.68
  5. Step 5: Solve for x
    x = 235,093,465,012.68/488,313.30
  6. Step 6: Final answer
    x = 481,439.82

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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.