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Finding the Fourth Proportional to 548,149.02, 756,451.02 and 306,444.80

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Solution

The fourth proportional to 548,149.02, 756,451.02 and 306,444.80 is: 422,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,149.02 : 756,451.02 = 306,444.80 : x
  2. Step 2: Convert to fraction form
    548,149.02/756,451.02 = 306,444.80/x
  3. Step 3: Cross multiply
    548,149.02x = 756,451.02 × 306,444.80
  4. Step 4: Simplify right side
    548,149.02x = 231,810,481,533.70
  5. Step 5: Solve for x
    x = 231,810,481,533.70/548,149.02
  6. Step 6: Final answer
    x = 422,896.83

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1.5x scale

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.