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Finding the Fourth Proportional to 583.20, 808.25 and 576.45

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Solution

The fourth proportional to 583.20, 808.25 and 576.45 is: 798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.20 : 808.25 = 576.45 : x
  2. Step 2: Convert to fraction form
    583.20/808.25 = 576.45/x
  3. Step 3: Cross multiply
    583.20x = 808.25 × 576.45
  4. Step 4: Simplify right side
    583.20x = 465,912.83
  5. Step 5: Solve for x
    x = 465,912.83/583.20
  6. Step 6: Final answer
    x = 798.89

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.