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Finding the Fourth Proportional to 531.99, 792.09 and 530.37

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Solution

The fourth proportional to 531.99, 792.09 and 530.37 is: 789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.99 : 792.09 = 530.37 : x
  2. Step 2: Convert to fraction form
    531.99/792.09 = 530.37/x
  3. Step 3: Cross multiply
    531.99x = 792.09 × 530.37
  4. Step 4: Simplify right side
    531.99x = 420,100.77
  5. Step 5: Solve for x
    x = 420,100.77/531.99
  6. Step 6: Final answer
    x = 789.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.