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Finding the Fourth Proportional to 583.20, 878.45 and 529.74

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Solution

The fourth proportional to 583.20, 878.45 and 529.74 is: 797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.20 : 878.45 = 529.74 : x
  2. Step 2: Convert to fraction form
    583.20/878.45 = 529.74/x
  3. Step 3: Cross multiply
    583.20x = 878.45 × 529.74
  4. Step 4: Simplify right side
    583.20x = 465,347.45
  5. Step 5: Solve for x
    x = 465,347.45/583.20
  6. Step 6: Final answer
    x = 797.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.