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Finding the Fourth Proportional to 626.50, 858.29 and 603.13

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Solution

The fourth proportional to 626.50, 858.29 and 603.13 is: 826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.50 : 858.29 = 603.13 : x
  2. Step 2: Convert to fraction form
    626.50/858.29 = 603.13/x
  3. Step 3: Cross multiply
    626.50x = 858.29 × 603.13
  4. Step 4: Simplify right side
    626.50x = 517,660.45
  5. Step 5: Solve for x
    x = 517,660.45/626.50
  6. Step 6: Final answer
    x = 826.27

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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.