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Finding the Fourth Proportional to 528.84, 793.53 and 488.75

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Solution

The fourth proportional to 528.84, 793.53 and 488.75 is: 733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.84 : 793.53 = 488.75 : x
  2. Step 2: Convert to fraction form
    528.84/793.53 = 488.75/x
  3. Step 3: Cross multiply
    528.84x = 793.53 × 488.75
  4. Step 4: Simplify right side
    528.84x = 387,833.82
  5. Step 5: Solve for x
    x = 387,833.82/528.84
  6. Step 6: Final answer
    x = 733.37

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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.