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Finding the Fourth Proportional to 672.28, 926.76 and 524.60

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Solution

The fourth proportional to 672.28, 926.76 and 524.60 is: 723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.28 : 926.76 = 524.60 : x
  2. Step 2: Convert to fraction form
    672.28/926.76 = 524.60/x
  3. Step 3: Cross multiply
    672.28x = 926.76 × 524.60
  4. Step 4: Simplify right side
    672.28x = 486,178.30
  5. Step 5: Solve for x
    x = 486,178.30/672.28
  6. Step 6: Final answer
    x = 723.18

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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.