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Finding the Fourth Proportional to 533,229.36, 735,865.29 and 318,388.20

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Solution

The fourth proportional to 533,229.36, 735,865.29 and 318,388.20 is: 439,380.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,229.36 : 735,865.29 = 318,388.20 : x
  2. Step 2: Convert to fraction form
    533,229.36/735,865.29 = 318,388.20/x
  3. Step 3: Cross multiply
    533,229.36x = 735,865.29 × 318,388.20
  4. Step 4: Simplify right side
    533,229.36x = 234,290,825,125.58
  5. Step 5: Solve for x
    x = 234,290,825,125.58/533,229.36
  6. Step 6: Final answer
    x = 439,380.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.