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Finding the Fourth Proportional to 952.74, 1,429.28 and 404.93

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Solution

The fourth proportional to 952.74, 1,429.28 and 404.93 is: 607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.74 : 1,429.28 = 404.93 : x
  2. Step 2: Convert to fraction form
    952.74/1,429.28 = 404.93/x
  3. Step 3: Cross multiply
    952.74x = 1,429.28 × 404.93
  4. Step 4: Simplify right side
    952.74x = 578,749.18
  5. Step 5: Solve for x
    x = 578,749.18/952.74
  6. Step 6: Final answer
    x = 607.46

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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.