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Finding the Fourth Proportional to 624.38, 855.38 and 601.01

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Solution

The fourth proportional to 624.38, 855.38 and 601.01 is: 823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.38 : 855.38 = 601.01 : x
  2. Step 2: Convert to fraction form
    624.38/855.38 = 601.01/x
  3. Step 3: Cross multiply
    624.38x = 855.38 × 601.01
  4. Step 4: Simplify right side
    624.38x = 514,089.16
  5. Step 5: Solve for x
    x = 514,089.16/624.38
  6. Step 6: Final answer
    x = 823.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.