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Finding the Fourth Proportional to 495.49, 744.92 and 404.84

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Solution

The fourth proportional to 495.49, 744.92 and 404.84 is: 608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.49 : 744.92 = 404.84 : x
  2. Step 2: Convert to fraction form
    495.49/744.92 = 404.84/x
  3. Step 3: Cross multiply
    495.49x = 744.92 × 404.84
  4. Step 4: Simplify right side
    495.49x = 301,574.77
  5. Step 5: Solve for x
    x = 301,574.77/495.49
  6. Step 6: Final answer
    x = 608.64

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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.