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Finding the Fourth Proportional to 488.53, 733.61 and 401.86

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Solution

The fourth proportional to 488.53, 733.61 and 401.86 is: 603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.53 : 733.61 = 401.86 : x
  2. Step 2: Convert to fraction form
    488.53/733.61 = 401.86/x
  3. Step 3: Cross multiply
    488.53x = 733.61 × 401.86
  4. Step 4: Simplify right side
    488.53x = 294,808.51
  5. Step 5: Solve for x
    x = 294,808.51/488.53
  6. Step 6: Final answer
    x = 603.46

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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.