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Finding the Fourth Proportional to 579.04, 864.07 and 517.51

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Solution

The fourth proportional to 579.04, 864.07 and 517.51 is: 772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.04 : 864.07 = 517.51 : x
  2. Step 2: Convert to fraction form
    579.04/864.07 = 517.51/x
  3. Step 3: Cross multiply
    579.04x = 864.07 × 517.51
  4. Step 4: Simplify right side
    579.04x = 447,164.87
  5. Step 5: Solve for x
    x = 447,164.87/579.04
  6. Step 6: Final answer
    x = 772.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.