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Finding the Fourth Proportional to 613.20, 924.39 and 572.46

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Solution

The fourth proportional to 613.20, 924.39 and 572.46 is: 862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.20 : 924.39 = 572.46 : x
  2. Step 2: Convert to fraction form
    613.20/924.39 = 572.46/x
  3. Step 3: Cross multiply
    613.20x = 924.39 × 572.46
  4. Step 4: Simplify right side
    613.20x = 529,176.30
  5. Step 5: Solve for x
    x = 529,176.30/613.20
  6. Step 6: Final answer
    x = 862.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.