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Finding the Fourth Proportional to 675.27, 1,013.46 and 522.13

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Solution

The fourth proportional to 675.27, 1,013.46 and 522.13 is: 783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.27 : 1,013.46 = 522.13 : x
  2. Step 2: Convert to fraction form
    675.27/1,013.46 = 522.13/x
  3. Step 3: Cross multiply
    675.27x = 1,013.46 × 522.13
  4. Step 4: Simplify right side
    675.27x = 529,156.53
  5. Step 5: Solve for x
    x = 529,156.53/675.27
  6. Step 6: Final answer
    x = 783.62

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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.