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Finding the Fourth Proportional to 533,422.40, 800,133.60 and 449,441.60

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Solution

The fourth proportional to 533,422.40, 800,133.60 and 449,441.60 is: 674,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,422.40 : 800,133.60 = 449,441.60 : x
  2. Step 2: Convert to fraction form
    533,422.40/800,133.60 = 449,441.60/x
  3. Step 3: Cross multiply
    533,422.40x = 800,133.60 × 449,441.60
  4. Step 4: Simplify right side
    533,422.40x = 359,613,325,397.76
  5. Step 5: Solve for x
    x = 359,613,325,397.76/533,422.40
  6. Step 6: Final answer
    x = 674,162.40

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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.