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Finding the Fourth Proportional to 504.78, 753.02 and 493.26

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Solution

The fourth proportional to 504.78, 753.02 and 493.26 is: 735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.78 : 753.02 = 493.26 : x
  2. Step 2: Convert to fraction form
    504.78/753.02 = 493.26/x
  3. Step 3: Cross multiply
    504.78x = 753.02 × 493.26
  4. Step 4: Simplify right side
    504.78x = 371,432.18
  5. Step 5: Solve for x
    x = 371,432.18/504.78
  6. Step 6: Final answer
    x = 735.83

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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.