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Finding the Fourth Proportional to 616.98, 925.74 and 479.82

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Solution

The fourth proportional to 616.98, 925.74 and 479.82 is: 719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.98 : 925.74 = 479.82 : x
  2. Step 2: Convert to fraction form
    616.98/925.74 = 479.82/x
  3. Step 3: Cross multiply
    616.98x = 925.74 × 479.82
  4. Step 4: Simplify right side
    616.98x = 444,188.57
  5. Step 5: Solve for x
    x = 444,188.57/616.98
  6. Step 6: Final answer
    x = 719.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.