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Finding the Fourth Proportional to 662.91, 989.10 and 601.35

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Solution

The fourth proportional to 662.91, 989.10 and 601.35 is: 897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.91 : 989.10 = 601.35 : x
  2. Step 2: Convert to fraction form
    662.91/989.10 = 601.35/x
  3. Step 3: Cross multiply
    662.91x = 989.10 × 601.35
  4. Step 4: Simplify right side
    662.91x = 594,795.29
  5. Step 5: Solve for x
    x = 594,795.29/662.91
  6. Step 6: Final answer
    x = 897.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.