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Finding the Fourth Proportional to 548,891.64, 757,378.86 and 322,580.76

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Solution

The fourth proportional to 548,891.64, 757,378.86 and 322,580.76 is: 445,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,891.64 : 757,378.86 = 322,580.76 : x
  2. Step 2: Convert to fraction form
    548,891.64/757,378.86 = 322,580.76/x
  3. Step 3: Cross multiply
    548,891.64x = 757,378.86 × 322,580.76
  4. Step 4: Simplify right side
    548,891.64x = 244,315,848,266.73
  5. Step 5: Solve for x
    x = 244,315,848,266.73/548,891.64
  6. Step 6: Final answer
    x = 445,107.61

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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.