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Finding the Fourth Proportional to 667.98, 922.73 and 529.61

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Solution

The fourth proportional to 667.98, 922.73 and 529.61 is: 731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.98 : 922.73 = 529.61 : x
  2. Step 2: Convert to fraction form
    667.98/922.73 = 529.61/x
  3. Step 3: Cross multiply
    667.98x = 922.73 × 529.61
  4. Step 4: Simplify right side
    667.98x = 488,679.77
  5. Step 5: Solve for x
    x = 488,679.77/667.98
  6. Step 6: Final answer
    x = 731.58

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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.