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Finding the Fourth Proportional to 817.97, 1,128.25 and 593.51

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Solution

The fourth proportional to 817.97, 1,128.25 and 593.51 is: 818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    817.97 : 1,128.25 = 593.51 : x
  2. Step 2: Convert to fraction form
    817.97/1,128.25 = 593.51/x
  3. Step 3: Cross multiply
    817.97x = 1,128.25 × 593.51
  4. Step 4: Simplify right side
    817.97x = 669,625.77
  5. Step 5: Solve for x
    x = 669,625.77/817.97
  6. Step 6: Final answer
    x = 818.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.