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Finding the Fourth Proportional to 1,223.82, 1,835.91 and 530.82

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Solution

The fourth proportional to 1,223.82, 1,835.91 and 530.82 is: 796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.82 : 1,835.91 = 530.82 : x
  2. Step 2: Convert to fraction form
    1,223.82/1,835.91 = 530.82/x
  3. Step 3: Cross multiply
    1,223.82x = 1,835.91 × 530.82
  4. Step 4: Simplify right side
    1,223.82x = 974,537.75
  5. Step 5: Solve for x
    x = 974,537.75/1,223.82
  6. Step 6: Final answer
    x = 796.31

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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.