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Finding the Fourth Proportional to 952.43, 1,428.21 and 404.33

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Solution

The fourth proportional to 952.43, 1,428.21 and 404.33 is: 606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.43 : 1,428.21 = 404.33 : x
  2. Step 2: Convert to fraction form
    952.43/1,428.21 = 404.33/x
  3. Step 3: Cross multiply
    952.43x = 1,428.21 × 404.33
  4. Step 4: Simplify right side
    952.43x = 577,461.01
  5. Step 5: Solve for x
    x = 577,461.01/952.43
  6. Step 6: Final answer
    x = 606.31

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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.