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Finding the Fourth Proportional to 598.73, 897.96 and 390.43

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Solution

The fourth proportional to 598.73, 897.96 and 390.43 is: 585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.73 : 897.96 = 390.43 : x
  2. Step 2: Convert to fraction form
    598.73/897.96 = 390.43/x
  3. Step 3: Cross multiply
    598.73x = 897.96 × 390.43
  4. Step 4: Simplify right side
    598.73x = 350,586.03
  5. Step 5: Solve for x
    x = 350,586.03/598.73
  6. Step 6: Final answer
    x = 585.55

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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.