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Finding the Fourth Proportional to 617.96, 926.98 and 444.15

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Solution

The fourth proportional to 617.96, 926.98 and 444.15 is: 666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.96 : 926.98 = 444.15 : x
  2. Step 2: Convert to fraction form
    617.96/926.98 = 444.15/x
  3. Step 3: Cross multiply
    617.96x = 926.98 × 444.15
  4. Step 4: Simplify right side
    617.96x = 411,717.06
  5. Step 5: Solve for x
    x = 411,717.06/617.96
  6. Step 6: Final answer
    x = 666.25

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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.