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Finding the Fourth Proportional to 626.01, 864 and 404.97

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Solution

The fourth proportional to 626.01, 864 and 404.97 is: 558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.01 : 864 = 404.97 : x
  2. Step 2: Convert to fraction form
    626.01/864 = 404.97/x
  3. Step 3: Cross multiply
    626.01x = 864 × 404.97
  4. Step 4: Simplify right side
    626.01x = 349,894.08
  5. Step 5: Solve for x
    x = 349,894.08/626.01
  6. Step 6: Final answer
    x = 558.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.