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Finding the Fourth Proportional to 626.23, 934.36 and 556.57

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Solution

The fourth proportional to 626.23, 934.36 and 556.57 is: 830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.23 : 934.36 = 556.57 : x
  2. Step 2: Convert to fraction form
    626.23/934.36 = 556.57/x
  3. Step 3: Cross multiply
    626.23x = 934.36 × 556.57
  4. Step 4: Simplify right side
    626.23x = 520,036.75
  5. Step 5: Solve for x
    x = 520,036.75/626.23
  6. Step 6: Final answer
    x = 830.42

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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.