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Finding the Fourth Proportional to 598.50, 897.98 and 393.92

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Solution

The fourth proportional to 598.50, 897.98 and 393.92 is: 591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.50 : 897.98 = 393.92 : x
  2. Step 2: Convert to fraction form
    598.50/897.98 = 393.92/x
  3. Step 3: Cross multiply
    598.50x = 897.98 × 393.92
  4. Step 4: Simplify right side
    598.50x = 353,732.28
  5. Step 5: Solve for x
    x = 353,732.28/598.50
  6. Step 6: Final answer
    x = 591.03

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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.