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Finding the Fourth Proportional to 529.58, 728.97 and 467.57

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Solution

The fourth proportional to 529.58, 728.97 and 467.57 is: 643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.58 : 728.97 = 467.57 : x
  2. Step 2: Convert to fraction form
    529.58/728.97 = 467.57/x
  3. Step 3: Cross multiply
    529.58x = 728.97 × 467.57
  4. Step 4: Simplify right side
    529.58x = 340,844.50
  5. Step 5: Solve for x
    x = 340,844.50/529.58
  6. Step 6: Final answer
    x = 643.61

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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.