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Finding the Fourth Proportional to 496.58, 741.52 and 405.45

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Solution

The fourth proportional to 496.58, 741.52 and 405.45 is: 605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.58 : 741.52 = 405.45 : x
  2. Step 2: Convert to fraction form
    496.58/741.52 = 405.45/x
  3. Step 3: Cross multiply
    496.58x = 741.52 × 405.45
  4. Step 4: Simplify right side
    496.58x = 300,652.15
  5. Step 5: Solve for x
    x = 300,652.15/496.58
  6. Step 6: Final answer
    x = 605.45

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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.