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Finding the Fourth Proportional to 598.70, 824.10 and 451.28

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Solution

The fourth proportional to 598.70, 824.10 and 451.28 is: 621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.70 : 824.10 = 451.28 : x
  2. Step 2: Convert to fraction form
    598.70/824.10 = 451.28/x
  3. Step 3: Cross multiply
    598.70x = 824.10 × 451.28
  4. Step 4: Simplify right side
    598.70x = 371,899.85
  5. Step 5: Solve for x
    x = 371,899.85/598.70
  6. Step 6: Final answer
    x = 621.18

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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.