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Finding the Fourth Proportional to 528.62, 792.21 and 465.26

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Solution

The fourth proportional to 528.62, 792.21 and 465.26 is: 697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.62 : 792.21 = 465.26 : x
  2. Step 2: Convert to fraction form
    528.62/792.21 = 465.26/x
  3. Step 3: Cross multiply
    528.62x = 792.21 × 465.26
  4. Step 4: Simplify right side
    528.62x = 368,583.62
  5. Step 5: Solve for x
    x = 368,583.62/528.62
  6. Step 6: Final answer
    x = 697.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.