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Finding the Fourth Proportional to 453.84, 679.52 and 383.88

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Solution

The fourth proportional to 453.84, 679.52 and 383.88 is: 574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.84 : 679.52 = 383.88 : x
  2. Step 2: Convert to fraction form
    453.84/679.52 = 383.88/x
  3. Step 3: Cross multiply
    453.84x = 679.52 × 383.88
  4. Step 4: Simplify right side
    453.84x = 260,854.14
  5. Step 5: Solve for x
    x = 260,854.14/453.84
  6. Step 6: Final answer
    x = 574.77

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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.