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Finding the Fourth Proportional to 797.53, 1,100.57 and 443.45

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Solution

The fourth proportional to 797.53, 1,100.57 and 443.45 is: 611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.53 : 1,100.57 = 443.45 : x
  2. Step 2: Convert to fraction form
    797.53/1,100.57 = 443.45/x
  3. Step 3: Cross multiply
    797.53x = 1,100.57 × 443.45
  4. Step 4: Simplify right side
    797.53x = 488,047.77
  5. Step 5: Solve for x
    x = 488,047.77/797.53
  6. Step 6: Final answer
    x = 611.95

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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.