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Finding the Fourth Proportional to 579.65, 800.24 and 383.51

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Solution

The fourth proportional to 579.65, 800.24 and 383.51 is: 529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.65 : 800.24 = 383.51 : x
  2. Step 2: Convert to fraction form
    579.65/800.24 = 383.51/x
  3. Step 3: Cross multiply
    579.65x = 800.24 × 383.51
  4. Step 4: Simplify right side
    579.65x = 306,900.04
  5. Step 5: Solve for x
    x = 306,900.04/579.65
  6. Step 6: Final answer
    x = 529.46

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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.