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Finding the Fourth Proportional to 503,288.40, 753,620.40 and 324,829.20

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Solution

The fourth proportional to 503,288.40, 753,620.40 and 324,829.20 is: 486,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,288.40 : 753,620.40 = 324,829.20 : x
  2. Step 2: Convert to fraction form
    503,288.40/753,620.40 = 324,829.20/x
  3. Step 3: Cross multiply
    503,288.40x = 753,620.40 × 324,829.20
  4. Step 4: Simplify right side
    503,288.40x = 244,797,911,635.68
  5. Step 5: Solve for x
    x = 244,797,911,635.68/503,288.40
  6. Step 6: Final answer
    x = 486,396.89

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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.