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Finding the Fourth Proportional to 626.38, 858.12 and 603.01

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Solution

The fourth proportional to 626.38, 858.12 and 603.01 is: 826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.38 : 858.12 = 603.01 : x
  2. Step 2: Convert to fraction form
    626.38/858.12 = 603.01/x
  3. Step 3: Cross multiply
    626.38x = 858.12 × 603.01
  4. Step 4: Simplify right side
    626.38x = 517,454.94
  5. Step 5: Solve for x
    x = 517,454.94/626.38
  6. Step 6: Final answer
    x = 826.10

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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.