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Finding the Fourth Proportional to 628.38, 937.99 and 582.06

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Solution

The fourth proportional to 628.38, 937.99 and 582.06 is: 868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.38 : 937.99 = 582.06 : x
  2. Step 2: Convert to fraction form
    628.38/937.99 = 582.06/x
  3. Step 3: Cross multiply
    628.38x = 937.99 × 582.06
  4. Step 4: Simplify right side
    628.38x = 545,966.46
  5. Step 5: Solve for x
    x = 545,966.46/628.38
  6. Step 6: Final answer
    x = 868.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.