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Finding the Fourth Proportional to 623.46, 939.81 and 588.09

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Solution

The fourth proportional to 623.46, 939.81 and 588.09 is: 886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.46 : 939.81 = 588.09 : x
  2. Step 2: Convert to fraction form
    623.46/939.81 = 588.09/x
  3. Step 3: Cross multiply
    623.46x = 939.81 × 588.09
  4. Step 4: Simplify right side
    623.46x = 552,692.86
  5. Step 5: Solve for x
    x = 552,692.86/623.46
  6. Step 6: Final answer
    x = 886.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.