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Finding the Fourth Proportional to 607.41, 910.17 and 485.64

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Solution

The fourth proportional to 607.41, 910.17 and 485.64 is: 727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.41 : 910.17 = 485.64 : x
  2. Step 2: Convert to fraction form
    607.41/910.17 = 485.64/x
  3. Step 3: Cross multiply
    607.41x = 910.17 × 485.64
  4. Step 4: Simplify right side
    607.41x = 442,014.96
  5. Step 5: Solve for x
    x = 442,014.96/607.41
  6. Step 6: Final answer
    x = 727.70

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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.