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Finding the Fourth Proportional to 625.58, 864.24 and 533.29

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Solution

The fourth proportional to 625.58, 864.24 and 533.29 is: 736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.58 : 864.24 = 533.29 : x
  2. Step 2: Convert to fraction form
    625.58/864.24 = 533.29/x
  3. Step 3: Cross multiply
    625.58x = 864.24 × 533.29
  4. Step 4: Simplify right side
    625.58x = 460,890.55
  5. Step 5: Solve for x
    x = 460,890.55/625.58
  6. Step 6: Final answer
    x = 736.74

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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.