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Finding the Fourth Proportional to 619.60, 925.62 and 482.32

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Solution

The fourth proportional to 619.60, 925.62 and 482.32 is: 720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.60 : 925.62 = 482.32 : x
  2. Step 2: Convert to fraction form
    619.60/925.62 = 482.32/x
  3. Step 3: Cross multiply
    619.60x = 925.62 × 482.32
  4. Step 4: Simplify right side
    619.60x = 446,445.04
  5. Step 5: Solve for x
    x = 446,445.04/619.60
  6. Step 6: Final answer
    x = 720.54

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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.