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Finding the Fourth Proportional to 476.28, 709.52 and 458.88

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Solution

The fourth proportional to 476.28, 709.52 and 458.88 is: 683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.28 : 709.52 = 458.88 : x
  2. Step 2: Convert to fraction form
    476.28/709.52 = 458.88/x
  3. Step 3: Cross multiply
    476.28x = 709.52 × 458.88
  4. Step 4: Simplify right side
    476.28x = 325,584.54
  5. Step 5: Solve for x
    x = 325,584.54/476.28
  6. Step 6: Final answer
    x = 683.60

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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.