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Finding the Fourth Proportional to 529.74, 791.10 and 483.84

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Solution

The fourth proportional to 529.74, 791.10 and 483.84 is: 722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.74 : 791.10 = 483.84 : x
  2. Step 2: Convert to fraction form
    529.74/791.10 = 483.84/x
  3. Step 3: Cross multiply
    529.74x = 791.10 × 483.84
  4. Step 4: Simplify right side
    529.74x = 382,765.82
  5. Step 5: Solve for x
    x = 382,765.82/529.74
  6. Step 6: Final answer
    x = 722.55

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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.