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Finding the Fourth Proportional to 571.71, 788.70 and 453.73

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Solution

The fourth proportional to 571.71, 788.70 and 453.73 is: 625.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.71 : 788.70 = 453.73 : x
  2. Step 2: Convert to fraction form
    571.71/788.70 = 453.73/x
  3. Step 3: Cross multiply
    571.71x = 788.70 × 453.73
  4. Step 4: Simplify right side
    571.71x = 357,856.85
  5. Step 5: Solve for x
    x = 357,856.85/571.71
  6. Step 6: Final answer
    x = 625.94

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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.