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Finding the Fourth Proportional to 598.90, 898.94 and 490.50

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Solution

The fourth proportional to 598.90, 898.94 and 490.50 is: 736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.90 : 898.94 = 490.50 : x
  2. Step 2: Convert to fraction form
    598.90/898.94 = 490.50/x
  3. Step 3: Cross multiply
    598.90x = 898.94 × 490.50
  4. Step 4: Simplify right side
    598.90x = 440,930.07
  5. Step 5: Solve for x
    x = 440,930.07/598.90
  6. Step 6: Final answer
    x = 736.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.