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Finding the Fourth Proportional to 952.81, 1,427.95 and 404.31

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Solution

The fourth proportional to 952.81, 1,427.95 and 404.31 is: 605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.81 : 1,427.95 = 404.31 : x
  2. Step 2: Convert to fraction form
    952.81/1,427.95 = 404.31/x
  3. Step 3: Cross multiply
    952.81x = 1,427.95 × 404.31
  4. Step 4: Simplify right side
    952.81x = 577,333.45
  5. Step 5: Solve for x
    x = 577,333.45/952.81
  6. Step 6: Final answer
    x = 605.93

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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.