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Finding the Fourth Proportional to 474.02, 654.26 and 424.81

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Solution

The fourth proportional to 474.02, 654.26 and 424.81 is: 586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.02 : 654.26 = 424.81 : x
  2. Step 2: Convert to fraction form
    474.02/654.26 = 424.81/x
  3. Step 3: Cross multiply
    474.02x = 654.26 × 424.81
  4. Step 4: Simplify right side
    474.02x = 277,932.92
  5. Step 5: Solve for x
    x = 277,932.92/474.02
  6. Step 6: Final answer
    x = 586.34

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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.