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Finding the Fourth Proportional to 952.37, 1,428.78 and 404.57

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Solution

The fourth proportional to 952.37, 1,428.78 and 404.57 is: 606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.37 : 1,428.78 = 404.57 : x
  2. Step 2: Convert to fraction form
    952.37/1,428.78 = 404.57/x
  3. Step 3: Cross multiply
    952.37x = 1,428.78 × 404.57
  4. Step 4: Simplify right side
    952.37x = 578,039.50
  5. Step 5: Solve for x
    x = 578,039.50/952.37
  6. Step 6: Final answer
    x = 606.95

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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.