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Finding the Fourth Proportional to 837.89, 1,254.81 and 404

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Solution

The fourth proportional to 837.89, 1,254.81 and 404 is: 605.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.89 : 1,254.81 = 404 : x
  2. Step 2: Convert to fraction form
    837.89/1,254.81 = 404/x
  3. Step 3: Cross multiply
    837.89x = 1,254.81 × 404
  4. Step 4: Simplify right side
    837.89x = 506,943.24
  5. Step 5: Solve for x
    x = 506,943.24/837.89
  6. Step 6: Final answer
    x = 605.02

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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.