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Finding the Fourth Proportional to 492.93, 739.53 and 402.48

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Solution

The fourth proportional to 492.93, 739.53 and 402.48 is: 603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.93 : 739.53 = 402.48 : x
  2. Step 2: Convert to fraction form
    492.93/739.53 = 402.48/x
  3. Step 3: Cross multiply
    492.93x = 739.53 × 402.48
  4. Step 4: Simplify right side
    492.93x = 297,646.03
  5. Step 5: Solve for x
    x = 297,646.03/492.93
  6. Step 6: Final answer
    x = 603.83

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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.