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Finding the Fourth Proportional to 654.24, 902.04 and 457.68

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Solution

The fourth proportional to 654.24, 902.04 and 457.68 is: 631.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.24 : 902.04 = 457.68 : x
  2. Step 2: Convert to fraction form
    654.24/902.04 = 457.68/x
  3. Step 3: Cross multiply
    654.24x = 902.04 × 457.68
  4. Step 4: Simplify right side
    654.24x = 412,845.67
  5. Step 5: Solve for x
    x = 412,845.67/654.24
  6. Step 6: Final answer
    x = 631.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.