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Finding the Fourth Proportional to 951.94, 1,428.06 and 404.27

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Solution

The fourth proportional to 951.94, 1,428.06 and 404.27 is: 606.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.94 : 1,428.06 = 404.27 : x
  2. Step 2: Convert to fraction form
    951.94/1,428.06 = 404.27/x
  3. Step 3: Cross multiply
    951.94x = 1,428.06 × 404.27
  4. Step 4: Simplify right side
    951.94x = 577,321.82
  5. Step 5: Solve for x
    x = 577,321.82/951.94
  6. Step 6: Final answer
    x = 606.47

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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.