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Finding the Fourth Proportional to 572.77, 788.02 and 441.55

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Solution

The fourth proportional to 572.77, 788.02 and 441.55 is: 607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.77 : 788.02 = 441.55 : x
  2. Step 2: Convert to fraction form
    572.77/788.02 = 441.55/x
  3. Step 3: Cross multiply
    572.77x = 788.02 × 441.55
  4. Step 4: Simplify right side
    572.77x = 347,950.23
  5. Step 5: Solve for x
    x = 347,950.23/572.77
  6. Step 6: Final answer
    x = 607.49

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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.