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Finding the Fourth Proportional to 572.25, 789.75 and 483.24

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Solution

The fourth proportional to 572.25, 789.75 and 483.24 is: 666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.25 : 789.75 = 483.24 : x
  2. Step 2: Convert to fraction form
    572.25/789.75 = 483.24/x
  3. Step 3: Cross multiply
    572.25x = 789.75 × 483.24
  4. Step 4: Simplify right side
    572.25x = 381,638.79
  5. Step 5: Solve for x
    x = 381,638.79/572.25
  6. Step 6: Final answer
    x = 666.91

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Double scale
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Similar ratio
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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.